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Chandi K, Udomkun P, Boonupara T, Kaewlom P. Enhancing soil health, microbial count, and hydrophilic methomyl and hydrophobic lambda-cyhalothrin remediation with biochar and nano-biochar. Sci Rep 2024; 14:19551. [PMID: 39174647 PMCID: PMC11341857 DOI: 10.1038/s41598-024-70515-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024] Open
Abstract
Pesticide contamination and soil degradation present significant challenges in agricultural ecosystems, driving extensive exploration of biochar (BC) and nano-biochar (NBC) as potential solutions. This study examines their effects on soil properties, microbial communities, and the fate of two key pesticides: the hydrophilic methomyl (MET) and the hydrophobic lambda-cyhalothrin (LCT), at different concentrations (1%, 3%, and 5% w w-1) in agricultural soil. Through a carefully designed seven-week black bean pot experiment, the results indicated that the addition of BC/NBC significantly influenced soil dynamics. Soil pH and moisture content (MC) notably increased, accompanied by a general rise in soil organic carbon (SOC) content. However, in BC5/NBC5 treatments, SOC declined after the 2nd or 3rd week. Microbial populations, including total plate count (TPC), phosphate-solubilizing bacteria (PSB), and nitrogen-fixing bacteria (NFB), showed dynamic responses to BC/NBC applications. BC1/NBC1 and BC3/NBC3 applications led to a significant increase in microbial populations, whereas BC5/NBC5 treatments experienced a decline after the initial surge. Furthermore, the removal efficiency of both MET and LCT increased with higher BC/NBC concentrations, with NBC demonstrating greater efficacy than BC. Degradation kinetics, modeled by a first-order equation, revealed that MET degraded faster than LCT. These findings underscore the profound impact of BC/NBC on pesticide dynamics and microbial communities, highlighting their potential to transform sustainable agricultural practices.
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Affiliation(s)
- Kanchana Chandi
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Patchimaporn Udomkun
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Office of Research Administration, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Thirasant Boonupara
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Puangrat Kaewlom
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Yang J, Guan Y, Gu D, Zhang Y, Zhang Z, Shi J. Effect of a stranded hole type on the performance of corn stover composite pipe. PLoS One 2024; 19:e0301590. [PMID: 38598515 PMCID: PMC11006128 DOI: 10.1371/journal.pone.0301590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 03/19/2024] [Indexed: 04/12/2024] Open
Abstract
To promote the comprehensive utilization of corn stover and the development of field water-saving irrigation technology, a method of returning corn stover to the field was prosed; in this method, the crop stalks were crushed, mixed with soil in different proportions of adulteration, and then extruded to form hollow round tubes. To compare the influence of the winch blade with or without a diameter change on the composite pipe molding performance, two composite pipe molding devices were theoretically designed, simulated, and analyzed using discrete element simulation software, and a composite pipe molding bench test was performed. The simulation test revealed that the composite pipe molding rate of the winch blade without the reducer molding device was 3.45 kg/s, the output power of the winch shaft was 20.7 kW, the composite pipe molding rate of the winch blade with the reducer molding device was 1.20 kg/s, and the output power of the winch shaft was 18.75 kW. By calculating the weighted average of two indices, the composite pipe forming rate and the winch shaft output power, the comprehensive performance index of the composite pipe forming device without a reducer was greater than that of the device with a reducer. The composite pipe forming bench test revealed two kinds of molding devices with an extrusion molding with an outer diameter of 100 mm and an inner diameter of 30 mm. The composite pipe density test average was greater than 1.30 g/cm3 and met the requirements of composite pipe molding; the winch blade without a reducer molding device had an average composite pipe molding rate of 3.23 kg/s, and the winch blade with an average reducer molding rate of 2.07 kg/s. The forming rate of the composite pipe without a reducer was faster. Therefore, a winch blade without a reducer composite pipe molding device is more conducive to improving the composite pipe molding performance.
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Affiliation(s)
- Jie Yang
- North China University of Water Resources and Electric Power, Zhengzhou, 450046, China
| | - Yang Guan
- North China University of Water Resources and Electric Power, Zhengzhou, 450046, China
| | - Dongdong Gu
- North China University of Water Resources and Electric Power, Zhengzhou, 450046, China
| | - Yuzhong Zhang
- North China University of Water Resources and Electric Power, Zhengzhou, 450046, China
| | - Zheng Zhang
- North China University of Water Resources and Electric Power, Zhengzhou, 450046, China
| | - Jinfa Shi
- North China University of Water Resources and Electric Power, Zhengzhou, 450046, China
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Anwar T, Qureshi H, Jabeen M, Zaman W, Ali HM. Mitigation of cadmium-induced stress in maize via synergistic application of biochar and gibberellic acid to enhance morpho-physiological and biochemical traits. BMC PLANT BIOLOGY 2024; 24:192. [PMID: 38491471 PMCID: PMC10941574 DOI: 10.1186/s12870-024-04805-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/08/2024] [Indexed: 03/18/2024]
Abstract
Cadmium (Cd), being a heavy metal, tends to accumulate in soils primarily through industrial activities, agricultural practices, and atmospheric deposition. Maize, being a staple crop for many regions, is particularly vulnerable to Cd contamination, leading to compromised growth, reduced yields, and potential health risks for consumers. Biochar (BC), a carbon-rich material derived from the pyrolysis of organic matter has been shown to improve soil structure, nutrient retention and microbial activity. The choice of biochar as an ameliorative agent stems from its well-documented capacity to enhance soil quality and mitigate heavy metal stress. The study aims to contribute to the understanding of the efficacy of biochar in combination with GA3, a plant growth regulator known for its role in promoting various physiological processes, in mitigating the adverse effects of Cd stress. The detailed investigation into morpho-physiological attributes and biochemical responses under controlled laboratory conditions provides valuable insights into the potential benefits of these interventions. The experimental design consisted of three replicates in a complete randomized design (CRD), wherein soil, each containing 10 kg was subjected to varying concentrations of cadmium (0, 8 and 16 mg/kg) and biochar (0.75% w/w base). Twelve different treatment combinations were applied, involving the cultivation of 36 maize plants in soil contaminated with Cd (T1: Control (No Cd stress; T2: Mild Cd stress (8 mg Cd/kg soil); T3: Severe Cd stress (16 mg Cd/kg soil); T4: 10 ppm GA3 (No Cd stress); T5: 10 ppm GA3 + Mild Cd stress; T6: 10 ppm GA3 + Severe Cd stress; T7: 0.75% Biochar (No Cd stress); T8: 0.75% Biochar + Mild Cd stress; T9: 0.75% Biochar + Severe Cd stress; T10: 10 ppm GA3 + 0.75% Biochar (No Cd stress); T11: 10 ppm GA3 + 0.75% Biochar + Mild Cd stress; T12: 10 ppm GA3 + 0.75% Biochar + Severe Cd stress). The combined application of GA3 and BC significantly enhanced multiple parameters including germination (27.83%), root length (59.53%), shoot length (20.49%), leaf protein (121.53%), root protein (99.93%), shoot protein (33.65%), leaf phenolics (47.90%), root phenolics (25.82%), shoot phenolics (25.85%), leaf chlorophyll a (57.03%), leaf chlorophyll b (23.19%), total chlorophyll (43.77%), leaf malondialdehyde (125.07%), root malondialdehyde (78.03%) and shoot malondialdehyde (131.16%) across various Cd levels compared to the control group. The synergistic effect of GA3 and BC manifested in optimal leaf protein and malondialdehyde levels indicating induced tolerance and mitigation of Cd detrimental impact on plant growth. The enriched soils showed resistance to heavy metal toxicity emphasizing the potential of BC and GA3 as viable strategy for enhancing maize growth. The application of biochar and gibberellic acid emerges as an effective means to mitigate cadmium-induced stress in maize, presenting a promising avenue for sustainable agricultural practices.
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Affiliation(s)
- Tauseef Anwar
- Department of Botany, The Islamia University of Bahawalpur (Baghdad ul Jadeed Campus), Bahawalpur, 63100, Pakistan.
| | - Huma Qureshi
- Department of Botany, University of Chakwal, Chakwal, 48800, Pakistan
| | - Mah Jabeen
- Department of Botany, The Islamia University of Bahawalpur (Baghdad ul Jadeed Campus), Bahawalpur, 63100, Pakistan
| | - Wajid Zaman
- Department of Life Sciences, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Hayssam M Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Bagheri Novair S, Cheraghi M, Faramarzi F, Asgari Lajayer B, Senapathi V, Astatkie T, Price GW. Reviewing the role of biochar in paddy soils: An agricultural and environmental perspective. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115228. [PMID: 37423198 DOI: 10.1016/j.ecoenv.2023.115228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/19/2023] [Accepted: 07/01/2023] [Indexed: 07/11/2023]
Abstract
The main challenge of the twenty-first century is to find a balance between environmental sustainability and crop productivity in a world with a rapidly growing population. Soil health is the backbone of a resilient environment and stable food production systems. In recent years, the use of biochar to bind nutrients, sorption of pollutants, and increase crop productivity has gained popularity. This article reviews key recent studies on the environmental impacts of biochar and the benefits of its unique physicochemical features in paddy soils. This review provides critical information on the role of biochar properties on environmental pollutants, carbon and nitrogen cycling, plant growth regulation, and microbial activities. Biochar improves the soil properties of paddy soils through increasing microbial activities and nutrient availability, accelerating carbon and nitrogen cycle, and reducing the availability of heavy metals and micropollutants. For example, a study showed that the application of a maximum of 40 t ha-1 of biochar from rice husks prior to cultivation (at high temperature and slow pyrolysis) increases nutrient utilization and rice grain yield by 40%. Biochar can be used to minimize the use of chemical fertilizers to ensure sustainable food production.
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Affiliation(s)
- Sepideh Bagheri Novair
- Department of Soil Science, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.
| | - Meysam Cheraghi
- Department of Soil Science, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.
| | - Farzaneh Faramarzi
- Department of Agronomy and Plant Breeding, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.
| | | | | | - Tess Astatkie
- Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada.
| | - G W Price
- Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada.
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Yi Z, Jeyakumar P, Yin C, Sun H. Effects of biochar in combination with varied N inputs on grain yield, N uptake, NH 3 volatilization, and N 2O emission in paddy soil. Front Microbiol 2023; 14:1174805. [PMID: 37250021 PMCID: PMC10214156 DOI: 10.3389/fmicb.2023.1174805] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/25/2023] [Indexed: 05/31/2023] Open
Abstract
Biochar application can improve crop yield, reduce ammonia (NH3) volatilization and nitrous oxide (N2O) emission from farmland. We here conducted a pot experiment to compare the effects of biochar application on rice yield, nitrogen (N) uptake, NH3 and N2O losses in paddy soil with low, medium, and high N inputs at 160 kg/ha, 200 kg/ha and 240 kg/ha, respectively. The results showed that: (1) Biochar significantly increased the rice grain yield at medium (200 kg/ha) and high (240 kg/ha) N inputs by 56.4 and 70.5%, respectively. The way to increase yield was to increase the rice N uptake, rice panicle number per pot and 1,000 grain weight by 78.5-96.5%, 6-16% and 4.4-6.1%, respectively; (2) Under low (160 kg/ha) N input, adding biochar effectively reduced the NH3 volatilization by 31.6% in rice season. The decreases of pH value and NH4+-N content in surface water, and the increases of the abundance of NH4+-N oxidizing archaea and bacteria (AOA and AOB) communities contributed to the reduction of NH3 volatilization following the biochar application; (3) Under same N input levels, the total N2O emission in rice season decreased by 43.3-73.9% after biochar addition. The decreases of nirK and nirS gene abundances but the increases of nosZ gene abundance are the main mechanisms for biochar application to reduce N2O emissions. Based on the results of the current study, adding biochar at medium (200 kg/ha) N level (N200 + BC) is the best treatment to synchronically reduce NH3 and N2O losses, improve grain yield, and reduce fertilizer application in rice production system.
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Affiliation(s)
- Zhenghua Yi
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Paramsothy Jeyakumar
- Environmental Sciences, School of Agriculture and Environment, Massey University, Palmerston North, New Zealand
| | - Chengcheng Yin
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Haijun Sun
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
- Key Laboratory of Soil and Water Conservation and Ecological Restoration of Jiangsu Province, Nanjing Forestry University, Nanjing, China
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Su N, Xie G, Mao Z, Li Q, Chang T, Zhang Y, Peng J, Rong X, Luo G. The effectiveness of eight-years phosphorus reducing inputs on double cropping paddy: Insights into productivity and soil-plant phosphorus trade-off. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 866:161429. [PMID: 36623670 DOI: 10.1016/j.scitotenv.2023.161429] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/12/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Abundant evidence has demonstrated the feasibility of reducing phosphorus (P) input to face diminishing phosphate rock resources and deteriorating environmental quality in double-cropping paddy. However, the sustainability of reduced P input in the context of maintaining productivity and P efficient utilization is not yet clear. Herein, an 8-year (2013-2021) field-based database was built to explore the effects of reduced P input on rice productivity and the soil-plant P trade-off in double-cropping paddy. In the early and late rice seasons, compared with conventional P fertilization (early rice, 90 kg hm-2; late rice, 60 kg hm-2), the average yield of reduced 10 % P treatment increased by 4.3 % and 2.1 %, respectively; reduced 10-30 % P treatments increased average P use efficiency by 17.1-18.4 % and 14.0-17.2 %, decreased average total P runoff loss by 14.9-33.2 % and 20.8-36.4 %, and decreased average total P leaching loss by 18.5-49.0 % and 24.0-46.1 %, respectively. Compared with conventional fertilization, reduced P fertilizer input by 10 % significantly increased the content of the soil labile-P fraction while reducing that of the soil stable-P fraction. Soil ligand-P and exchangeable-P content decreased with the gradient reduction of P fertilizer input (10-30 %). The main predictors of the change in rice yield and plant P uptake were soil ligand-P and exchangeable-P content, respectively. The dominant predictor of both the P runoff loss and the P activation coefficient was the inorganic P content extracted by NaHCO3. These findings suggest that reduced P input by 10 % could maintain rice productivity and P use efficiency in the double-cropping paddy, and the transformations between soil P components and increases in P bioavailability may be the key drivers maintaining rice productivity and P utilization under the context of reduced P loading.
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Affiliation(s)
- Ning Su
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Guixian Xie
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha 410128, China; National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China.
| | - Zhiwei Mao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Qiaorong Li
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Tian Chang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha 410128, China; National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China
| | - Yuping Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha 410128, China; National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China
| | - Jianwei Peng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha 410128, China; National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China
| | - Xiangmin Rong
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha 410128, China; National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China
| | - Gongwen Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha 410128, China; National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China.
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Zhu Y, Deng K, Wu P, Feng K, Zhao S, Li L. Effects of Slow-Release Fertilizer on Lotus Rhizome Yield and Starch Quality under Different Fertilization Periods. PLANTS (BASEL, SWITZERLAND) 2023; 12:1311. [PMID: 36986998 PMCID: PMC10053914 DOI: 10.3390/plants12061311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 06/19/2023]
Abstract
Slow-release fertilizer is an environmentally friendly fertilizer that is widely used in crop cultivation instead of traditional nitrogen fertilizer. However, the optimal application time of slow-release fertilizer and its effect on starch accumulation and rhizome quality of lotus remains unclear. In this study, two slow-release fertilizer applications (sulfur-coated compound fertilizer, SCU, and resin-coated urea, RCU) were fertilized under three fertilization periods (the erect leaf stage, SCU1 and RCU1; the erect leaf completely covering the water stage, SCU2 and RCU2; and the swelling stage of lotus rhizomes, SCU3 and RCU3) to study the effects of different application periods. Compared with CK (0 kg∙ha-1 nitrogen fertilizer), leaf relative chlorophyll content (SPAD) and net photosynthetic rate (Pn) remained at higher levels under SCU1 and RCU1. Further studies showed that SCU1 and RCU1 increased yield, amylose content, amylopectin and total starch, and the number of starch particles in lotus, and also significantly reduced peak viscosity, final viscosity and setback viscosity of lotus rhizome starch. To account for these changes, we measured the activity of key enzymes in starch synthesis and the relative expression levels of related genes. Through analysis, we found that these parameters increased significantly under SCU and RCU treatment, especially under SCU1 and RCU1 treatment. The results of this study showed that the one-time application at the erect leaf stage (SCU1 and RCU1) could improve the physicochemical properties of starch by regulating the key enzymes and related genes of starch synthesis, thus improving the nutritional quality of lotus rhizome. These results provide a technical choice for the one-time application of slow-release fertilizer in lotus rhizome production and cultivation.
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Affiliation(s)
- Yamei Zhu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Y.Z.); (K.D.); (P.W.); (K.F.)
| | - Kangming Deng
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Y.Z.); (K.D.); (P.W.); (K.F.)
| | - Peng Wu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Y.Z.); (K.D.); (P.W.); (K.F.)
| | - Kai Feng
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Y.Z.); (K.D.); (P.W.); (K.F.)
| | - Shuping Zhao
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Y.Z.); (K.D.); (P.W.); (K.F.)
| | - Liangjun Li
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (Y.Z.); (K.D.); (P.W.); (K.F.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
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Zhang H, Zhang X, Gao G, Ali I, Wu X, Tang M, Chen L, Jiang L, Liang T. Effects of various seed priming on morphological, physiological, and biochemical traits of rice under chilling stress. FRONTIERS IN PLANT SCIENCE 2023; 14:1146285. [PMID: 36993861 PMCID: PMC10040639 DOI: 10.3389/fpls.2023.1146285] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/20/2023] [Indexed: 06/01/2023]
Abstract
INTRODUCTION/BACKGROUND Direct-seeded rice is exceptionally vulnerable to chilling stress, especially at the seed germination and seedling growth stages in the early season of the double cropping system. METHODS Therefore, we conducted two experiments to evaluate the role of various seed primings and their different concentrations of plant growth regulators [experiment 1-abscisic acid (ABA), gibberellin (GA3), salicylic acid (SA), brassinolide (BR), paclobutrazol, uniconazole (UN), melatonin (MT), and jasmonic acid (JA)] and osmopriming substances (chitosan, polyethylene glycol 6000 (PEG6000), and CaCl2) and experiment 2-GA, BR (two best), CaCl2 (worst), and control (CK)] on rice seedlings under low temperature condition. RESULTS Results showed that the maximum germination rate of 98% was recorded in GA3 (10 mgL-1) and BR (0.3 mgL-1) among treatments. Compared to CK, root and shoot length were improved in ABA (0.5 mgL-1) and GA3 (100 mgL-1) by 64% and 68%, respectively. At the same time, root and shoot weights (fresh and dry) were enhanced in Paclobutrazol (300 mgL-1) and GA3 among treatments. Furthermore, the average root volume, average root diameter, and total root surface area were increased by 27%, 38%, and 33% in Paclobutrazol (300 mgL-1), Paclobutrazol (200 mgL-1) and JA (1 mgL-1) treatments, respectively compared to CK. In the second experiment, a respective increase of 26%, 19%, 38%, and 59% was noted in SOD, POD, CAT, and APX enzyme activities in GA treatment compared to CK. Similarly, proline, soluble sugar, soluble protein, and GA content were also improved by 42%, 25.74%, 27%, and 19%, respectively, in GA treatment compared to CK. However, a respective reduction of 21% and 18% was noted in MDA and ABA content in GA treatment compared to CK. Our finding highlighted that better germination of primed-rice seedlings was associated with fresh and dry weights of the roots and shoots and the average root volume of the seedlings. DISCUSSION Our results suggested that GA3 (10 mg L-1) and BR (0.3 mg L-1) seed priming prevent rice seedlings from chilling-induced oxidative stress by regulating antioxidant enzyme activities and maintaining ABA, GA, MDA, soluble sugar, and protein content. However, further studies (transcriptome and proteome) are needed to explore the molecular mechanisms involved in seed priming-induced chilling tolerance under field conditions.
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Affiliation(s)
- Hua Zhang
- Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, China
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Xiaoli Zhang
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Guoqing Gao
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Izhar Ali
- Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, China
| | - Xiaoyan Wu
- Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, China
| | - Maoyan Tang
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Lei Chen
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
| | - Ligeng Jiang
- Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, China
| | - Tianfeng Liang
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, China
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Guo R, Qian R, Han F, Khaliq A, Hussain S, Yang L, Zhang P, Chen X, Ren X. Managing straw and nitrogen fertilizer based on nitrate threshold for balancing nitrogen requirement of maize and nitrate residue. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 329:117084. [PMID: 36565501 DOI: 10.1016/j.jenvman.2022.117084] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/13/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Optimized straw and nitrogen (N) fertilizer management instrumental in realizing synchronized soil N supply and crop N requirement (Nr), reducing nitrate-N leaching and achieving efficient and cleaner agricultural production systems, especially in the areas with poor soil fertility retention. A three-year field trial during 2019-2021 was conducted in northwest China with different straw incorporation methods (SM) (without straw or biochar (NI), straw incorporation (SI) and straw-derived biochar incorporation (BI)) combined with four N application rates (NR) (0, 225, 300, and 375 kg ha-1). The grain yield, Nr and the critical nitrate threshold in the root zone (0-100 cm soil layer; NAc) after maize harvest were determined to optimize straw and N inputs for maize yield enhancement and nitrate residue control. Then the prediction methods of optimal N rate determined with NAc (TONR) and soil testing were modified for straw or straw-derived biochar incorporated spring maize production in the future. The results showed that grain yield and nitrate residue in the deep soil (100-200 cm soil; NA100-200) after maize harvest increased by N application, grain yield further increased but NA100-200 decreased when combined with SI and BI (P < 0.05). In particular, a significant increase in grain yield, Nr and N recovery efficiency (NRE) under BI was attributed to an increase in soil N supply and N assimilation after the tassel stage (VT) of maize as compared with SI (P < 0.05). The NAc values were determined as 49, 104 and 67 kg ha-1 under NI, SI and BI, respectively for maintaining N supply and preventing leaching into 100-200 cm soil. Compared with the economically optimal N rate (EONR), BI combined with TONR (268 kg N ha-1) reduced the N rate by 22 kg ha-1 per year and NA100-200 by 5.3% and increased NRE by 5.7% to achieve 99.7% maximum yield (14.448 Mg ha-1), which was a sustainable management method of straw and N rate for enhancing spring maize production and controlling soil nitrate leaching.
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Affiliation(s)
- Ru Guo
- College of Agronomy, Northwest A&F University, Yangling, 712100, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Crop Physiology, Ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Rui Qian
- College of Agronomy, Northwest A&F University, Yangling, 712100, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Crop Physiology, Ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Fei Han
- College of Agronomy, Northwest A&F University, Yangling, 712100, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Crop Physiology, Ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Abdul Khaliq
- Department of Agronomy, University of Agriculture, Faisalabad, Punjab, Pakistan
| | - Sadam Hussain
- College of Agronomy, Northwest A&F University, Yangling, 712100, China
| | - Ling Yang
- College of Agronomy, Northwest A&F University, Yangling, 712100, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Crop Physiology, Ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Peng Zhang
- College of Agronomy, Northwest A&F University, Yangling, 712100, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Crop Physiology, Ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xiaoli Chen
- College of Agronomy, Northwest A&F University, Yangling, 712100, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Crop Physiology, Ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Xiaolong Ren
- College of Agronomy, Northwest A&F University, Yangling, 712100, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling, 712100, Shaanxi, China; Key Laboratory of Crop Physiology, Ecology and Tillage Science in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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10
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Ullah S, Ali I, Yang M, Zhao Q, Iqbal A, Wu X, Ahmad S, Muhammad I, Khan A, Adnan M, Yuan P, Jiang L. Partial Substitution of Urea with Biochar Induced Improvements in Soil Enzymes Activity, Ammonia-Nitrite Oxidizers, and Nitrogen Uptake in the Double-Cropping Rice System. Microorganisms 2023; 11:microorganisms11020527. [PMID: 36838492 PMCID: PMC9959172 DOI: 10.3390/microorganisms11020527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/09/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Biochar is an important soil amendment that can enhance the biological properties of soil, as well as nitrogen (N) uptake and utilization in N-fertilized crops. However, few studies have characterized the effects of urea and biochar application on soil biochemical traits and its effect on paddy rice. Therefore, a field trial was conducted in the early and late seasons of 2020 in a randomized complete block design with two N levels (135 and 180 kg ha-1) and four levels of biochar (0, 10, 20, and 30 t ha-1). The treatment combinations were as follows: 135 kg N ha-1 + 0 t B ha-1 (T1), 135 kg N ha-1 + 10 t B ha-1 (T2), 135 kg N ha-1 + 20 t B ha-1 (T3), 135 kg N ha-1 + 30 t B ha-1 (T4), 180 kg N ha-1 + 0 t B ha-1 (T5), 180 kg N ha-1 + 10 t B ha-1 (T6), 180 kg N ha-1 + 20 t B ha-1 (T7) and 180 kg N ha-1 + 30 t B ha-1 (T8). The results showed that soil amended with biochar had higher soil pH, soil organic carbon content, total nitrogen content, and mineral nitrogen (NH4+-N and NO3--N) than soil that had not been amended with biochar. In both seasons, the 20 t ha-1 and 30 t ha-1 biochar treatments had the highest an average concentrations of NO3--N (10.54 mg kg-1 and 10.25 mg kg-1, respectively). In comparison to soil that had not been treated with biochar, the average activity of the enzymes urease, polyphenol oxidase, dehydrogenase, and chitinase was, respectively, 25.28%, 14.13%, 67.76%, and 22.26% greater; however, the activity of the enzyme catalase was 15.06% lower in both seasons. Application of biochar considerably increased the abundance of ammonia-oxidizing bacteria (AOB), which was 48% greater on average in biochar-amended soil than in unamended soil. However, there were no significant variations in the abundances of ammonia-oxidizing archaea (AOA) or nitrite-oxidizing bacteria (NOB) across treatments. In comparison to soil that had not been treated with biochar, the average N content was 24.46%, 20.47%, and 19.08% higher in the stem, leaves, and panicles, respectively. In general, adding biochar at a rate of 20 to 30 t ha-1 with low-dose urea (135 kg N ha-1) is a beneficial technique for improving the nutrient balance and biological processes of soil, as well as the N uptake and grain yield of rice plants.
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Affiliation(s)
- Saif Ullah
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
- Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, China
| | - Izhar Ali
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Mei Yang
- Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, China
| | - Quan Zhao
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Anas Iqbal
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Xiaoyan Wu
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Shakeel Ahmad
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Ihsan Muhammad
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Abdullah Khan
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Muhammad Adnan
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Pengli Yuan
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
| | - Ligeng Jiang
- Key Laboratory of Crop Cultivation and Physiology, Guangxi University, Education Department of Guangxi, Nanning 530004, China
- Guangxi Key Laboratory of Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China
- Correspondence:
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11
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Abulaiti A, She D, Liu Z, Sun X, Wang H. Application of biochar and polyacrylamide to revitalize coastal saline soil quality to improve rice growth. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18731-18747. [PMID: 36219298 PMCID: PMC9552741 DOI: 10.1007/s11356-022-23511-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Poor soil quality is affected by salinity, which limits land productivity and sustainable agricultural development in coastal China. Hence, it is essential to choose suitable and efficient approaches to revitalize coastal saline soil quality and improve agricultural productivity. Biochar and polyacrylamide (PAM) have been widely applied as soil amendments to enhance soil structure, but the interactive effects of biochar and PAM on rice growth are unclear. The experiment described in this study was conducted over five consecutive growing seasons (from 2016 to 2020) with biochar (at 0, 32, and 79 t/hm2) and PAM (at 0, 0.6, and 1.6 t/hm2) applications to study the effects of amendments on soil properties, rice photosynthesis, and rice yield in coastal saline land. The soil property results showed that wheat straw biochar and PAM lowered soil total salt and bulk density, but increased the soil organic matter (SOM), mean weight diameter of water-stable aggregates (MWD), and macroaggregate (> 0.25 mm) content. The application of either biochar or PAM increased the rice net photosynthetic rate, transpiration rate, and stomatal conductance. The combined application of 32 t/hm2 biochar + 0.6 t/hm2 PAM increased the net photosynthetic rate by 26.0% and the transpiration rate by 24.8% relative to the control. The application of 32 t/hm2 biochar and 1.6 t/hm2 PAM significantly increased the rice grain yield. The path analysis model showed that spikelets per panicle and canopy gross photosynthesis had strong and significant positive effects on grain yield, whereas soil total salt had a negative effect on grain yield. The combined application of 32 t/hm2 biochar + 0.6 t/hm2 PAM was identified as the most effective for rice growth. Biochar and PAM amendments at an optimal level may enhance soil properties by reducing salinity. These findings indicate that biochar and PAM have the potential to remediate coastal saline soil quality and the environment, which would simultaneously increase the sustainable use of coastal land resources and food production to preserve the ecological environment.
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Affiliation(s)
- Alimu Abulaiti
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 211100, China
- Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Nanjing, 211100, China
| | - Dongli She
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 211100, China.
- Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Nanjing, 211100, China.
| | - Zhipeng Liu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaoqin Sun
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 211100, China
- Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Nanjing, 211100, China
| | - Hongde Wang
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 211100, China
- Jiangsu Province Engineering Research Center for Agricultural Soil-Water Efficient Utilization, Carbon Sequestration and Emission Reduction, Nanjing, 211100, China
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12
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Yang W, Feng G, Jia Y, Yang Y, Gao X, Gao L, Qu Z. Impact of single biochar application on maize growth and water-fertilizer productivity under different irrigation regimes. FRONTIERS IN PLANT SCIENCE 2022; 13:1006827. [PMID: 36438135 PMCID: PMC9687391 DOI: 10.3389/fpls.2022.1006827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
The improvement of soil water and nutrient availability through soil management practices are crucial in promoting crop growth and obtaining high water-fertilizer productivity under limited irrigation. In this study, a 2×4 fully randomized factorial design with two drip-irrigation regimes and four biochar rates was performed during maize crop growing seasons for a semiarid region of China in 2015 and 2016. Irrigation regimes was applied on the basis of the water lower limit of -15 kPa soil matric potential as W15 and -35 kPa as W35. Maize straw-derived biochar application rate of 0 (B0), 15 (B15), 30 (B30), and 45 (B45) t ha-1 was once applied to sandy loam soil in the first growing season. Our results showed that the W15 and W35 regimes generally increased soil nutrient availability and organic matter content under all biochar treatment rates for the entire growth period. In comparison, the B45-induced increase in available P and K was higher in the W15 regime than in the W35 regime during the second growing season. Furthermore, biochar treatment improved the comprehensive fertility index (CFI), leaf area index, and yield of maize. Within the same biochar treatment, the CFI value was higher in the W15 regime than in the W35 regime during the first growing season. However, the opposite was observed in the second growing season. The average irrigation water productivity (IWP) increased by 11.6%, 8.8%, and 7.8% in the W35 regime and by 15.2%, 12.9%, and 10.2% in the W15 regime for the B15, B30, and B45 treatments, respectively. Moreover, biochar treatment enhanced maize grain yield and partial fertilizer productivity (PFP) of synthetic N, P, and K fertilizers under both irrigation regimes. The highest PFP values were observed in the B15 treatment under W15. In general, a one-time application of biochar treatment at a rate of 15 t ha-1 in the first growing season is recommended in terms of increasing the availability of N, P, K, and organic matter in sandy loam and also improve water-fertilizer productivity under irrigation water lower limit of -15 kPa soil matric potential.
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Affiliation(s)
- Wei Yang
- College of Water Conservation and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Gary Feng
- Genetics and Sustainable Agriculture Research Unit, USDA-Agricultural Research Service, Starkville, MS, United States
| | - Yonglin Jia
- College of Water Conservation and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Yixuan Yang
- College of Water Conservation and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Xiaoyu Gao
- College of Water Conservation and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Lihua Gao
- College of Water Conservation and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Zhongyi Qu
- College of Water Conservation and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, China
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13
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Effects of Biochar and Nitrogen Application on Rice Biomass Saccharification, Bioethanol Yield and Cell Wall Polymers Features. Int J Mol Sci 2022; 23:ijms232113635. [DOI: 10.3390/ijms232113635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/31/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Rice is a major food crop that produces abundant biomass wastes for biofuels. To improve rice biomass and yield, nitrogen (N) fertilizer is excessively used, which is not eco-friendly. Alternatively, biochar (B) application is favored to improve rice biomass and yield under low chemical fertilizers. To minimize the reliance on N fertilizer, we applied four B levels (0, 10, 20, and 30 t B ha−1) combined with two N rates (low-135 and high-180 kg ha−1) to improve biomass yield. Results showed that compared to control, the combined B at 20–30 t ha−1 with low N application significantly improved plant dry matter and arabinose (Ara%), while decreasing cellulose crystallinity (Crl), degree of polymerization (DP), and the ratio of xylose/arabinose (Xyl/Ara), resulting in high hexoses (% cellulose) and bioethanol yield (% dry matter). We concluded that B coupled with N can alter cell wall polymer features in paddy rice resulting in high biomass saccharification and bioethanol production.
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Singh AP, Yerudkar A, Liuzza D, Liu Y, Glielmo L. An Optimal Decision Support System Based on Crop Dynamic Model for N-Fertilizer Treatment. SENSORS (BASEL, SWITZERLAND) 2022; 22:7613. [PMID: 36236710 PMCID: PMC9570642 DOI: 10.3390/s22197613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
The efficient handling of nitrogen has become a critical issue in modern agriculture, from a financial standpoint, as well as in regard to reducing the environmental impacts of using an excessive amount of nitrogen fertilizer. Manure compost is useful for maintaining or raising soil chemical levels without excessive NO3- accumulation; however, for the best grain yield, it should be combined with N fertilizer. Via this study, we aimed to develop an optimal decision support system that indicates when to initiate fertilization based on nitrogen-limited (N-limited) crop growth dynamics. An optimal nitrogen fertilizer (N-fertilizer) management system increases crop yield while maintaining a balance between fertilizer supply and crop demand. This study used the N-limited crop growth model (LINTUL3) to develop an optimal decision support system. In this work, we formulated and resolved two optimization challenges: (i) maximization of biomass growth; and (ii) maximization of growth with the least cost paid on N-fertilizer and its application. Furthermore, two case studies were developed based on the number of fields: (i) optimization for a single field, and (ii) optimization for multiple fields. In the case of multiple fields, it is hypothesized that a fertilizer treatment for one field can leak to other fields and affect the nitrogen dynamics of different fields. Finally, numerical simulations were carried out supporting the theory developed in the paper. The simulations showed that when the proposed work was employed to achieve the goal of optimal nitrogen management for a crop, a 28% to 53% increase in biomass growth under certain scenarios was attained.
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Affiliation(s)
- Abhaya Pal Singh
- Department of Engineering, University of Sannio, 82100 Benevento, Italy
| | - Amol Yerudkar
- Department of Engineering, University of Sannio, 82100 Benevento, Italy
| | - Davide Liuzza
- ENEA Fusion and Nuclear Safety Department, 00044 Frascati, Italy
| | - Yang Liu
- College of Mathematics and Computer Science, and College of Mathematical Medicine, Zhejiang Normal University, Jinhua 321004, China
- Jinhua Intelligent Manufacturing Research Institute, Jinhua 321032, China
| | - Luigi Glielmo
- Department of Engineering, University of Sannio, 82100 Benevento, Italy
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15
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Song Y, Zhao Q, Guo X, Ali I, Li F, Lin S, Liu D. Effects of biochar and organic-inorganic fertilizer on pomelo orchard soil properties, enzymes activities, and microbial community structure. Front Microbiol 2022; 13:980241. [PMID: 35992706 PMCID: PMC9382122 DOI: 10.3389/fmicb.2022.980241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 07/11/2022] [Indexed: 11/17/2022] Open
Abstract
Fertilizer management can influence soil microbes, soil properties, enzymatic activities, abundance and community structure. However, information on the effects of biochar in combination with organic-inorganic fertilizer after 3 years under pomelo orchard on soil bacterial abundance, soil properties and enzyme activities are not clear. Therefore, we conducted a field experiment with seven treatments, i.e., (1) Ck (control), (2) T1 (2 kg biochar plant–1), (3) T2 (4 kg biochar plant–1), (4) T3 (2 kg organic-inorganic mixed fertilizer plant–1), (5) T4 (4 kg biochar + 1.7 kg organic-inorganic mixed fertilizer plant–1), (6) T5 (4 kg biochar + 1.4 kg organic-inorganic mixed fertilizer plant–1), and (7) T6 (4 kg biochar + 1.1 kg organic-inorganic mixed fertilizer plant–1). The soil microbial communities were characterized using high-throughput sequencing of 16S and internal transcribed spacer (ITS) ribosomal RNA gene amplicons. The results showed that biochar combined with organic-organic fertilizer significantly improved soil properties (pH, alkali hydrolysable nitrogen, available phosphorus, available potassium, and available magnesium) and soil enzymatic activities [urease, dehydrogenase (DHO), invertase and nitrate reductase (NR) activities]. Furthermore, soil bacterial relative abundance was higher in biochar and organic-inorganic treatments as compared to control plots and the most abundant phyla were Acidobacteria (40%), Proteobacteria (21%), Chloroflexi (17%), Planctomycetes (8%), Bacteroidetes (4%), Verrucomicrobia (2%), and Gemmatimonadetes (1%) among others. Among the treatments, Acidothermus, Acidibacter, Candidatus Solibacter and F473 bacterial genera were highest in combined biochar and organic-inorganic treatments. The lowest bacterial abundance and bacterial compositions were recorded in control plots. The correlation analysis showed that soil attributes, including soil enzymes, were positively correlated with Chloroflexi, Planctomycetes, verrucomicrobia, GAL15 and WPS-2 bacterial abundance. This study demonstrated that biochar with organic-inorganic fertilizer improves soil nutrients, enzymatic activities and bacterial abundance.
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Affiliation(s)
- Yang Song
- Institute of Subtropical Crops of Zhejiang Province, Wenzhou, China
| | - Quan Zhao
- Institute of Subtropical Crops of Zhejiang Province, Wenzhou, China
| | - Xiuzhu Guo
- Institute of Subtropical Crops of Zhejiang Province, Wenzhou, China
| | - Izhar Ali
- College of Agriculture, Guangxi University, Nanning, China
| | - Fayong Li
- Institute of Subtropical Crops of Zhejiang Province, Wenzhou, China
| | - Shaosheng Lin
- Institute of Subtropical Crops of Zhejiang Province, Wenzhou, China
| | - Dongfeng Liu
- Institute of Subtropical Crops of Zhejiang Province, Wenzhou, China
- *Correspondence: Dongfeng Liu,
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16
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Iqbal A, Ali I, Yuan P, Khan R, Liang H, Wei S, Jiang L. Combined Application of Manure and Chemical Fertilizers Alters Soil Environmental Variables and Improves Soil Fungal Community Composition and Rice Grain Yield. Front Microbiol 2022; 13:856355. [PMID: 35910624 PMCID: PMC9330912 DOI: 10.3389/fmicb.2022.856355] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 06/14/2022] [Indexed: 11/13/2022] Open
Abstract
Soil microorganisms play vital roles in energy flow and soil nutrient cycling and, thus, are important for crop production. A detailed understanding of the complex responses of microbial communities to diverse organic manure and chemical fertilizers (CFs) is crucial for agroecosystem sustainability. However, little is known about the response of soil fungal communities and soil nutrients to manure and CFs, especially under double-rice cropping systems. In this study, we investigated the effects of the application of combined manure and CFs to various fertilization strategies, such as no N fertilizer (Neg-CF); 100% chemical fertilizer (Pos-CF); 60% cattle manure (CM) + 40% CF (high-CM); 30% CM + 70% CF (low-CM); 60% poultry manure (PM) + 40% CF (high-PM), and 30% PM + 70% CF (low-PM) on soil fungal communities' structure and diversity, soil environmental variables, and rice yield. Results showed that synthetic fertilizer plus manure addition significantly increased the soil fertility and rice grain yield compared to sole CFs' application. Moreover, the addition of manure significantly changed the soil fungal community structure and increased the relative abundance of fungi such as phyla Ascomycota, Basidiomycota, Mortierellomycota, and Rozellomycota. The relative abundances dramatically differed at each taxonomic level, especially between manured and non-manured regimes. Principal coordinates analysis (PCoA) exhibited greater impacts of the addition of manure amendments than CFs on fungal community distributions. Redundancy analysis showed that the dominant fungal phyla were positively correlated with soil pH, soil organic C (SOC), total N, and microbial biomass C, and the fungal community structure was strongly affected by SOC. Network analysis explored positive relationships between microorganisms and could increase their adaptability in relevant environments. In addition, the structural equation model (SEM) shows the relationship between microbial biomass, soil nutrients, and rice grain yield. The SEM showed that soil nutrient contents and their availability directly affect rice grain yield, while soil fungi indirectly affect grain yield through microbial biomass production and nutrient levels. Our results suggest that manure application combined with CFs altered soil biochemical traits and soil fungal community structure and counteracted some of the adverse effects of the synthetic fertilizer. Overall, the findings of this research suggest that the integrated application of CF and manure is a better approach for improving soil health and rice yield.
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Affiliation(s)
- Anas Iqbal
- College of Life Science and Technology, Guangxi University, Nanning, China
- College of Agriculture, Guangxi University, Nanning, China
| | - Izhar Ali
- College of Agriculture, Guangxi University, Nanning, China
| | - Pengli Yuan
- College of Agriculture, Guangxi University, Nanning, China
| | - Rayyan Khan
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - He Liang
- College of Agriculture, Guangxi University, Nanning, China
| | - Shanqing Wei
- College of Agriculture, Guangxi University, Nanning, China
| | - Ligeng Jiang
- College of Life Science and Technology, Guangxi University, Nanning, China
- College of Agriculture, Guangxi University, Nanning, China
- *Correspondence: Ligeng Jiang
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Combined Use of Biochar with 15Nitrogen Labelled Urea Increases Rice Yield, N Use Efficiency and Fertilizer N Recovery under Water-Saving Irrigation. SUSTAINABILITY 2022. [DOI: 10.3390/su14137622] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Biochar is a potential carbon-rich soil amendment that improves the physicochemical properties of soil, besides acting as a controlled release fertilizer. An experiment was conducted to investigate the effect of biochars on rice yield, fertilizer use efficiency and recovery under water-saving irrigation by 15N isotopic tracer study. Two types of irrigation as alternate wetting and drying (AWD) and continuous flooding (CF), and four types of biochar treatments such as rice husk biochar (RHB) with 15N urea, oil palm empty fruit bunch biochar (EFBB) with 15N urea, 15N urea alone and control, were applied to assess their impact on rice. About 4% reduced grain yield with 18% improved water productivity was achieved by the AWD regime over the CF, whereas RHB and EFBB significantly increased rice yield compared to unamended soil. RHB and EFBB enhanced the water productivity up to 25.3%. The fertilizer N uptake and recovery were boosted by RHB and EFBB up to 18.8% and 24.5%, respectively. RHB and EFBB accelerated the agronomic use efficiency and partial factor productivity of N (up to 21% and 8%, respectively). RHB and EFBB profoundly enhanced the pH, the total C and N and the available N (NH4+ and NO3−) of the post-harvest soil. This study suggests that adding RHB and EFBB with urea improves fertilizer N utilization and soil N retention, and their combination with AWD could enhance rice yield with better water productivity due to their porous structure and controlled N release capacity.
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Iqbal A, He L, Ali I, Yuan P, Khan A, Hua Z, Wei S, Jiang L. Partial Substation of Organic Fertilizer With Chemical Fertilizer Improves Soil Biochemical Attributes, Rice Yields, and Restores Bacterial Community Diversity in a Paddy Field. FRONTIERS IN PLANT SCIENCE 2022; 13:895230. [PMID: 35720563 PMCID: PMC9201382 DOI: 10.3389/fpls.2022.895230] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Conventional farming systems are highly reliant on chemical fertilizers (CFs), which adversely affect soil quality, crop production and the environment. One of the major current challenges of current agriculture is finding ways to increase soil health and crop yield sustainably. Manure application as a substitute for CF is an alternative fertilization strategy for maintaining soil health and biodiversity. However, little is known about the complex response of soil bacterial communities and soil nutrients to manure and CFs application. This study reports the response of soil nutrients, rice yield, and soil microbial community structure to 2 years of continuous manure and CFs application. The study consisted of six treatments: no N fertilizer control (Neg-Con); 100% CF (Pos-Con); 60% cattle manure (CM) + 40% CF (High-CM); 30% CM + 70% CF (Low-CM); 60% poultry manure (PM) + 40% CF (High-PM), and 30% PM + 70% CF (Low-PM). We used high-throughput sequencing of 16S ribosomal RNA gene amplicons to characterize the soil bacterial communities. Results revealed that the addition of manure significantly altered the soil bacterial community composition and structure; and enhanced the relative abundance of phyla Proteobacteria, Chloroflexi, Firmicutes, Acidobacteria, and Planctomycetes. Organic fertilizer treatments, particularly high CM and PM had the highest measured soil bacterial diversity of all treatments. Similarly, integrated application of manure and CFs increased the soil biochemical traits [i.e., pH, total N (TN), soil organic C (SOC), microbial biomass N (MBN), and microbial biomass C (MBC)] and rice grain yield. Average increases in SOC, TN, MBN, and MBC were 43.66, 31.57, 24.34, and 49.45%, respectively, over the years in the High-PM compared with Pos-Con. Redundancy analysis showed that the dominant bacteria phyla were correlated with soil pH, SOC, TN, and microbial biomass, but the relative abundance of Proteobacteria was strongly correlated with environmental factors such as soil pH, SOC, TN, and MBC. We employed a structural equation model to examine the relationship between microbial biomass, soil nutrients and grain yield among treatments. This analysis supported the hypothesis that soil nutrient content and availability directly affect rice grain yield while soil bacteria indirectly affect grain yield through microbial biomass production and nutrient levels. Overall, the findings of this research suggest that the integrated application of CF and manure is a better approach for improving soil health and rice yield.
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Affiliation(s)
- Anas Iqbal
- College of Life Science and Technology, Guangxi University, Nanning, China
- College of Agriculture, Guangxi University, Nanning, China
| | - Liang He
- College of Agriculture, Guangxi University, Nanning, China
| | - Izhar Ali
- College of Agriculture, Guangxi University, Nanning, China
| | - Pengli Yuan
- College of Agriculture, Guangxi University, Nanning, China
| | - Abdullah Khan
- College of Agriculture, Guangxi University, Nanning, China
| | - Zhang Hua
- College of Agriculture, Guangxi University, Nanning, China
| | - Shanqing Wei
- College of Agriculture, Guangxi University, Nanning, China
| | - Ligeng Jiang
- College of Life Science and Technology, Guangxi University, Nanning, China
- College of Agriculture, Guangxi University, Nanning, China
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Khan A, Jiang H, Bu J, Adnan M, Gillani SW, Hussain MA, Zhang M. Untangling the Rhizosphere Bacterial Community Composition and Response of Soil Physiochemical Properties to Different Nitrogen Applications in Sugarcane Field. Front Microbiol 2022; 13:856078. [PMID: 35369493 PMCID: PMC8964298 DOI: 10.3389/fmicb.2022.856078] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/02/2022] [Indexed: 11/30/2022] Open
Abstract
Minimizing the use of chemical fertilizers and investigating an appropriate ecofriendly level of nitrogen fertilizer is the key to sustainable agriculture. Sugarcane is the main cash crop of China, especially in the Guangxi region. Information regarding the effect of different nitrogen levels on sugarcane rhizosphere microbiota is still limited. In this study, we evaluated the effect of four different levels of nitrogen fertilizers on rhizosphere bacterial composition using high throughput sequencing, along with soil physiochemical properties, sugarcane agronomic and yield performance. The four treatment combinations were CK (no fertilizers), L (Low, 100 kg ha–1), M (Medium, 150 kg ha–1), and H (High, 200 kg ha–1). The results showed that M nitrogen application significantly altered the rhizosphere bacterial community, soil properties, and sugarcane yield. The richness and evenness of the bacterial community were higher in M treatment than CK. In M treatment important bacterial phyla Acidobacteria and Proteobacteria increased by 47 and 71%, respectively; and at genus level, Acidothermus and Bradyrhizobium increased by 77.2 and 30.3%, respectively, compared to CK. Principal component analysis (PCA) and cluster analysis further confirmed the level of differences among the treatments. The PCA analysis explained 80% of the total variation among the treatments. Spearmen correlation heatmap showed that environmental factors such as pH, AP (available phosphorous), AK (available potassium), and SCAT (soil catalase) were the key factors impacting sugarcane rhizosphere microbiome composition. The H and L nitrogen application alter the bacterial community and sugarcane performance but the M nitrogen application appears to be ecofriendly, productive, and an appropriate nitrogen application rate that could be further used in the Guangxi region.
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Affiliation(s)
- Abdullah Khan
- Guangxi Key Laboratory of Sugarcane Biology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Hongtao Jiang
- Guangxi Key Laboratory of Sugarcane Biology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Junyao Bu
- Guangxi Key Laboratory of Sugarcane Biology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Muhammad Adnan
- Guangxi Key Laboratory of Sugarcane Biology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Syeda Wajeeha Gillani
- Guangxi Key Laboratory of Sugarcane Biology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | | | - Muqing Zhang
- Guangxi Key Laboratory of Sugarcane Biology, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
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Effects of Biochar Amendment and Nitrogen Fertilizer on RVA Profile and Rice Grain Quality Attributes. Foods 2022; 11:foods11050625. [PMID: 35267258 PMCID: PMC8909715 DOI: 10.3390/foods11050625] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/13/2022] [Accepted: 02/18/2022] [Indexed: 12/15/2022] Open
Abstract
Improving rice production in modern agriculture relies heavily on the overuse of chemical fertilizer, which adversely affects grain quality. Biochar (BC) application is well known for enhancing rice yield under reduced nitrogen (N) application. Therefore, we conducted a two-year field experiment in 2019 and 2020 to evaluate RVA profile characteristics, grain milling, and appearance qualities under four BC rates (0, 10, 20, 30 t ha−1) in combination with two N levels (135 and 180 kg ha−1). The results showed that BC at 30 t ha−1 along with 135 kg N ha−1 improved rapid visco-analyzer (RVA) profile attributes, including peak viscosity (4081.3), trough viscosity (3168.0), break down (913.3), final viscosity (5135.7), and set back (1967.7). Grain yield, grain rain length, milled rice rate, percent grains with chalkiness, amylose, and starch content were improved by 27%, 23%, 37%, 24%, 14%, and 8%, respectively, in the plots treated with the combination of 30 t BC ha−1 and 180 kg N ha−1. A positive coefficient of correlation was observed in RVA profile, milling, and apparent quality of rice with soil properties. These results suggested that BC at 20 to 30 t ha−1 in combination with 135 kg N ha−1 is a promising option for enhancing grain yield, RVA profile, appearance, and milling quality.
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Shakoor A, Dar AA, Arif MS, Farooq TH, Yasmeen T, Shahzad SM, Tufail MA, Ahmed W, Albasher G, Ashraf M. Do soil conservation practices exceed their relevance as a countermeasure to greenhouse gases emissions and increase crop productivity in agriculture? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150337. [PMID: 34543788 DOI: 10.1016/j.scitotenv.2021.150337] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
Globally, agriculture sector is the significant source of greenhouse gases (GHGs) emissions into the atmosphere. To achieve the goal of limiting or mitigating these emissions, a rigorous abatement strategy with an additional focus on improving crop productivity is now imperative. Replacing traditional agriculture with soil conservation-based farming can have numerous ecological benefits. However, most assessments only consider improvements in soil properties and crop productivity, and often preclude the quantitative impact analysis on GHGs emissions. Here, we conducted a meta-analysis to evaluate crop productivity (i.e., biomass, grain, total yield) and GHGs emissions (i.e., CO2, N2O, CH4) for three major soil conservation practices i.e., no-tillage, manures, and biochar. We also examined the yield potential of three major cereal crops (i.e., wheat, rice, maize) and their significance in mitigating GHGs emissions. None of the manures were able to reduce GHGs emissions, with poultry manure being the largest contributor to all GHGs emissions. However, pig-manure had the greatest impact on crop yield while emitting the least CO2 emissions. Use of biochar showed a strong coupling effect between reduction of GHGs (i.e., CH4 by -37%; N2O by -25%; CO2 by -5%) and the increase in crop productivity. In contrast, no-tillage resulted in higher GHGs emissions with only a marginal increase in grain yield. Depending on crop type, all cereal crops showed varied degrees of GHGs mitigation under biochar application, with wheat responding most strongly due to the additional yield increment. The addition of biochar significantly reduced CO2 and N2O emissions under both rainfed and irrigated conditions, although CH4 reductions were identical in both agroecosystems. Interestingly, the use of biochar resulted in a greater yield benefit in rainfed than in irrigated agriculture. Despite significant GHGs emissions, manure application contributed to higher crop yields, regardless of soil type or agroecosystem. Moreover, no-tillage showed a significant reduction in CH4 and N2O emissions under rainfed and irrigated conditions. Notably , biochar application in coarse while no-till in fine textured soils contributed to N2O mitigation. Most importantly, effectiveness of no-tillage as a countermeasure to GHGs emissions while providing yield benefits is inconsistent. Overall, the decision to use farm manures should be reconsidered due to higher GHGs emissions. We conclude that the use of biochar could be an ideal way to reduce GHGs emissions. However, further understanding of the underlying mechanisms and processes affecting GHGs emissions is needed to better understand the feedback effects in conservation agriculture.
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Affiliation(s)
- Awais Shakoor
- Department of Environment and Soil Sciences, University of Lleida, Avinguda Alcalde Rovira Roure 191, 25198 Lleida, Spain.
| | - Afzal Ahmed Dar
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Muhammad Saleem Arif
- Department of Environmental Sciences & Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan.
| | - Taimoor Hassan Farooq
- Bangor College China, a joint unit of Bangor University, Wales, UK and Central South University of Forestry and Technology, Changsha 410004, China
| | - Tahira Yasmeen
- Department of Environmental Sciences & Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Sher Muhammad Shahzad
- Department of Soil and Environmental Sciences, College of Agriculture, University of Sargodha, Sargodha 40100, Punjab, Pakistan
| | - Muhammad Aammar Tufail
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, 38123 Trento, Italy
| | - Waqas Ahmed
- Guangdong Provincial Key Laboratory for Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; School of Civil Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Gadah Albasher
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Ashraf
- Department of Soil Science, Faculty of Agriculture, Bahauddin Zakariya University, Multan, Punjab, Pakistan
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22
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Ali I, Ullah S, Iqbal A, Quan Z, Liang H, Ahmad S, Muhammad I, Guo Z, Wei S, Jiang L. Combined application of biochar and nitrogen fertilizer promotes the activity of starch metabolism enzymes and the expression of related genes in rice in a dual cropping system. BMC PLANT BIOLOGY 2021; 21:600. [PMID: 34922452 PMCID: PMC8684189 DOI: 10.1186/s12870-021-03384-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 12/03/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND Overuse of chemical fertilizer highly influences grain filling rate and quality of rice grain. Biochar is well known for improving plant growth and grain yield under lower chemical fertilization. Therefore field trials were conducted in the early and late seasons of 2019 at Guangxi University, China to investigate the effects of combined biochar (B) and nitrogen (N) application on rice yield and yield components. There were a total of eight treatments: N1B0, 135 kg N ha- 1+ 0 t B ha- 1; N2B0,180 kg N ha- 1+ 0 t B ha- 1; N1B1,135 kg N ha- 1+ 10 t B ha- 1; N1B2,135kg N ha- 1+ 20 t B ha- 1; N1B3,135 kg N ha- 1+ 30 t B ha- 1; N2B1,180 kg N ha- 1+ 10 t B ha- 1; N2B2,180 kg N ha- 1+ 20 t B ha- 1; and N2B3,180 kg N ha- 1+ 30 t B ha- 1. RESULTS Biochar application at 30 t ha- 1combined with low N application (135 kg ha- 1) increased the activity of starch-metabolizing enzymes (SMEs) during the early and late seasons compared with treatments without biochar. The grain yield, amylose concentration, and starch content of rice were increased in plots treated with 30 t B ha-1and low N. RT-qPCR analysis showed that biochar addition combined with N fertilizer application increased the expression of AGPS2b, SSS1, GBSS1, and GBSE11b, which increased the activity of SMEs during the grain-filling period. CONCLUSION Our results suggest that the use of 20 to 30 t B ha- 1coupled with 135 kg N ha- 1 is optimal for improving the grain yield and quality of rice.
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Affiliation(s)
- Izhar Ali
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - Saif Ullah
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - Anas Iqbal
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
- College of Life Science and Technology, Guangxi University, Nanning, China
| | - Zhao Quan
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - He Liang
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - Shakeel Ahmad
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - Ihsan Muhammad
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - Zixiong Guo
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - Shangqing Wei
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China
| | - Ligeng Jiang
- College of Agriculture, Guangxi University, Nanning, 530004, Guangxi, China.
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23
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Yield, Grain Quality, and Starch Physicochemical Properties of 2 Elite Thai Rice Cultivars Grown under Varying Production Systems and Soil Characteristics. Foods 2021; 10:foods10112601. [PMID: 34828879 PMCID: PMC8620510 DOI: 10.3390/foods10112601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Rice production systems and soil characteristics play a crucial role in determining its yield and grain quality. Two elite Thai rice cultivars, namely, KDML105 and RD6, were cultivated in two production systems with distinct soil characteristics, including net-house pot production and open-field production. Under open-field system, KDML105 and RD6 had greater panicle number, total grain weight, 100-grain weight, grain size, and dimension than those grown in the net-house. The amounts of reducing sugar and long amylopectin branch chains (DP 25–36) of the RD6 grains along with the amounts of long branch chains (DP 25–36 and DP ≥ 37), C-type starch granules, and average chain length of the KDML105 were substantially enhanced by the open-field cultivation. Contrastingly, the relative crystallinity of RD6 starch and the amounts of short branch chains (DP 6–12 and DP 13–24), B- and A-type granules, and median granule size of KDML105 starch were significantly suppressed. Consequently, the open-field-grown RD6 starch displayed significant changes in its gelatinization and retrogradation properties, whereas, certain retrogradation parameters and peak viscosity (PV) of KDML105 starches were differentially affected by the distinct cultivating conditions. This study demonstrated the influences of production systems and soil characteristics on the physicochemical properties of rice starches.
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Singh A, Kuttippurath J, Abbhishek K, Mallick N, Raj S, Chander G, Dixit S. Biogenic link to the recent increase in atmospheric methane over India. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 289:112526. [PMID: 33848879 DOI: 10.1016/j.jenvman.2021.112526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/26/2021] [Accepted: 03/30/2021] [Indexed: 05/23/2023]
Abstract
Methane (CH4) is a prominent Greenhouse Gas (GHG) and its global atmospheric concentration has increased significantly since the year 2007. Anthropogenic CH4 emissions are projected to be 9390 million metric tonnes by 2020. Here, we present the long-term changes in atmospheric methane over India and suggest possible alternatives to reduce soil emissions from paddy fields. The increase in atmospheric CH4 concentrations from 2009 to 2020 in India is significant, about 0.0765 ppm/decade. The Indo-Gangetic Plains, Peninsular India and Central India show about 0.075, 0.076 and 0.074 ppm/decade, respectively, in 2009-2020. Seasonal variations in CH4 emissions depend mostly on agricultural activities and meteorology, and contribution during the agricultural intensive period of Kharif-Rabi (i.e., June-December) is substantial in this regard. The primary reason for agricultural soil emissions is the application of chemical fertilizers to improve crop yield. However, for rice farming, soil amendments involving stable forms of carbon can reduce GHG emissions and improve soil carbon status. High crop production in pot culture experiment resulted in lower potential yield-scaled GHG emissions in rice with biochar supplement. The human impact of global warming induced by agricultural activities could be reduced by using biochar as a natural solution.
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Affiliation(s)
- A Singh
- CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India; AGFE Department, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - J Kuttippurath
- CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| | - K Abbhishek
- CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - N Mallick
- AGFE Department, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - S Raj
- CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - G Chander
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
| | - S Dixit
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India
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Mackon E, Ma Y, Jeazet Dongho Epse Mackon GC, Usman B, Zhao Y, Li Q, Liu P. Computational and Transcriptomic Analysis Unraveled OsMATE34 as a Putative Anthocyanin Transporter in Black Rice ( Oryza sativa L.) Caryopsis. Genes (Basel) 2021; 12:583. [PMID: 33923742 PMCID: PMC8073145 DOI: 10.3390/genes12040583] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/11/2021] [Accepted: 04/13/2021] [Indexed: 11/16/2022] Open
Abstract
Anthocyanin is a flavonoid compound with potential antioxidant properties beneficial to human health and sustains plant growth and development under different environmental stresses. In black rice, anthocyanin can be found in the stems, leaves, stigmas, and caryopsis. Although the anthocyanin biosynthesis in rice has been extensively studied, limited knowledge underlying the storage mechanism and transporters is available. This study undertook the complementation of computational and transcriptome analysis to decipher a potential multidrug and toxic compound extrusion (MATE) gene candidate for anthocyanin transportation in black rice caryopsis. The phylogenetic analysis showed that OsMATE34 has the same evolutionary history and high similarities with VvAM1, VvAM3, MtMATE2, SlMATE/MTP77, RsMATE8, AtFFT, and AtTT12 involved in anthocyanin transportation. RNA sequencing analysis in black caryopsis (Bc; Bc11, Bc18, Bc25) and white caryopsis (Wc; Wc11, Wc18, Wc25), respectively, at 11 days after flowering (DAF), 18 DAF, and 25 DAF revealed a total of 36,079 expressed genes, including 33,157 known genes and 2922 new genes. The differentially expressed genes (DEGs) showed 15,573 genes commonly expressed, with 1804 and 1412 genes uniquely expressed in Bc and Wc, respectively. Pairwise comparisons showed 821 uniquely expressed genes out of 15,272 DEGs for Wc11 vs. Bc11, 201 uniquely expressed genes out of 16,240 DEGs for Wc18 vs. Bc18, and 2263 uniquely expressed genes out of 16,240 DEGs for Wc25 vs. Bc25. Along with anthocyanin biosynthesis genes (OsPAL, OsCHS, OsCHI, OsF3H, OsDFR, OsANS, and OsUFGT/Os3GT), OsMATE34 expression was significantly upregulated in all Bc but not in Wc. OsMATE34 expression was similar to OsGSTU34, a transporter of anthocyanin in rice leaves. Taken together, our results highlighted OsMATE34 (Os08g0562800) as a candidate anthocyanin transporter in rice caryopsis. This study provides a new finding and a clue to enhance the accumulation of anthocyanin in rice caryopsis.
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Affiliation(s)
| | | | | | | | | | | | - Piqing Liu
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530005, China; (E.M.); (Y.M.); (G.C.J.D.E.M.); (B.U.); (Y.Z.); (Q.L.)
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Xu Y, Song Z, Chang X, Guo Z, Gao M. Effects of Fe-Mn oxide-modified biochar composite applications on phthalate esters (PAEs) accumulation in wheat grains and grain quality under PAEs-polluted brown soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111624. [PMID: 33396144 DOI: 10.1016/j.ecoenv.2020.111624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/20/2020] [Accepted: 11/04/2020] [Indexed: 06/12/2023]
Abstract
Phthalate esters (PAEs), such as dibutyl phthalate (DBP) and di-(2-ethylhexyl) phthalate (DEHP), are used extensively as additives and plasticizers, and have become ubiquitous in the environment. PAEs in the soil could have adverse effects on crop plants as well as humans via accumulations in food chain. Thus, it is important to explore strategies to reduce the bioavailability of phthalate esters. We investigated the effects of Fe-Mn oxide-modified biochar composite (FMBC) applications on the quality of wheat grown in DBP- and DEHP-polluted brown soil. The application of FMBC and biochar (BC) increased the wheat grain biomass by 9.71-223.01% and 5.40-120.15% in the DBP-polluted soil, and 10.52-186.21% and 4.50-99.53% in the DEHP-spiked soil in comparison to the controls. All FMBC treatments were better than the BC treatments, in terms of decreasing DBP and DEHP bioavailability for the wheat grains. The activities of the glutamine synthetase and glutamic-pyruvic transaminase in the flag leaves at the filling stage and of granule-bound starch synthase, soluble starch synthase, and adenosine diphosphate-glucose pyrophosphorylase in the grains at maturity increased significantly with increases in either the BC or FMBC applications. This, in turn, increased the starch, protein, and amino acid content in the wheat grains. Compared with the BC treatment, the FMBC amendment induced only slight increases in the aforementioned factors. This study offers novel insights into potential strategies for decreasing PAEs bioavailability in soil, with potential positive implications for crop quality and environmental health improvements.
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Affiliation(s)
- Yalei Xu
- School of Environmental Science and Engineering, Tiangong University, No. 399 Binshui West Road, Xiqing District, Tianjin 300387, China
| | - Zhengguo Song
- Department of Civil and Environmental Engineering, Shantou University, No. 243 Daxue Road, Shantou, Guangdong Province, 515063, China
| | - Xipeng Chang
- School of Environmental Science and Engineering, Tiangong University, No. 399 Binshui West Road, Xiqing District, Tianjin 300387, China
| | - Zeyang Guo
- School of Environmental Science and Engineering, Tiangong University, No. 399 Binshui West Road, Xiqing District, Tianjin 300387, China
| | - Minling Gao
- Department of Civil and Environmental Engineering, Shantou University, No. 243 Daxue Road, Shantou, Guangdong Province, 515063, China.
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27
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Zhang J, Li F, Liao P, Khan A, Hussain I, Iqbal A, Ali I, Wei B, Jiang L. Smash ridge tillage strongly influence soil functionality, physiology and rice yield. Saudi J Biol Sci 2020; 28:1297-1307. [PMID: 33613059 PMCID: PMC7878828 DOI: 10.1016/j.sjbs.2020.11.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 11/26/2022] Open
Abstract
The practice of smash-ridging on dry land crop cultivation has shown much promise. However, the mechanism how does soil functionality and root traits can affect rice yield under smash ridge tillage with reduced nitrogen fertilization have not yet been explored. To fill this knowledge gap, we used three tillage methods—smash-ridging 40 cm (S40), smash-ridging 20 cm (S20), and traditional turn-over plowing 20 cm (T)—and two rice varieties (hybrid rice and conventional rice) and measured soil quality, root traits, rice yield and their correlation analysis at different growth stages. Soil physical and chemical properties were significantly improved by smash-ridging, including improvements in root morphological and physiological traits during three growth stages compared with T. S40 had the highest leaf area index (LAI), plant height (PH), and biomass accumulation (BA). Increment in biomass and panicle number (PN) resulted in higher grain yield (GY) of 6.9–9.4% compared with T. Correlation analysis revealed that root total absorption area (RTAA), root active absorption area (RAA), and root area ratio (RAR) were strongly correlated with soil quality. Root injury flow (RIF) and root biomass accumulation (RBA) were strongly correlated with LAI and above-ground plant biomass accumulation (AGBA). Conclusively, S40 is a promising option for improving soil quality, root traits, and consequently GY.
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Key Words
- AGBA, ground plant biomass accumulation
- AK, available potassium
- AN, available nitrogen
- AP, available phosphorus
- BA, biomass accumulation
- BD, bulk density
- GY, grain yield
- Grain yield
- LAI, leaf area index
- NA, nitrogen accumulation nitrogen
- NDP, dry matter productivity
- NGP, nitrogen grain productivity
- NHI, nitrogen harvest index
- NTE, nitrogen transport efficiency
- P, porosity
- PD, particle density
- PH, plant height
- PN, panicle number
- RAA, root active absorption area
- RAA, roots active absorption area
- RAR, root area ratio
- RAR, roots area ratio
- RBA, root biomass accumulation
- RIF, Root injury flow
- RSA, roots surface area
- RTAA, root total absorption area
- RTAA, roots total absorption area
- RV, roots volume
- RVL, maximum roots length per volume
- Rice (Oryza sativa)
- Roots traits
- Rα-NO, roots α-naphthylamine oxidation
- S20, smash-ridging 20 cm
- S40, smash-ridging 40 cm
- SOC, soil organic carbon
- Smash-ridging tillage
- Soil quality
- T, traditional turn-over plowing 20 cm
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Crop Cultivation and Farming System College of Agriculture, Guangxi University, Nanning, China
| | - Faqiao Li
- Key Laboratory of Crop Cultivation and Farming System College of Agriculture, Guangxi University, Nanning, China
| | - Peizuo Liao
- Key Laboratory of Crop Cultivation and Farming System College of Agriculture, Guangxi University, Nanning, China
| | - Aziz Khan
- Key Laboratory of Crop Cultivation and Farming System College of Agriculture, Guangxi University, Nanning, China
| | - Izhar Hussain
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong, China
| | - Anas Iqbal
- Key Laboratory of Crop Cultivation and Farming System College of Agriculture, Guangxi University, Nanning, China
| | - Izhar Ali
- Key Laboratory of Crop Cultivation and Farming System College of Agriculture, Guangxi University, Nanning, China
| | - Benhui Wei
- Commercial Crop Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Ligeng Jiang
- Key Laboratory of Crop Cultivation and Farming System College of Agriculture, Guangxi University, Nanning, China
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28
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Ali I, Ullah S, He L, Zhao Q, Iqbal A, Wei S, Shah T, Ali N, Bo Y, Adnan M, Amanullah, Jiang L. Combined application of biochar and nitrogen fertilizer improves rice yield, microbial activity and N-metabolism in a pot experiment. PeerJ 2020; 8:e10311. [PMID: 33240639 PMCID: PMC7668215 DOI: 10.7717/peerj.10311] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 10/15/2020] [Indexed: 11/25/2022] Open
Abstract
The excessive use of synthetic nitrogen (N) fertilizers in rice (Oryza sativa L.) has resulted in high N loss, soil degradation, and environmental pollution in a changing climate. Soil biochar amendment is proposed as a climate change mitigation tool that supports carbon sequestration and reduces N losses and greenhouse gas (GHG) emissions from the soil. The current study evaluated the impact of four different rates of biochar (B) (C/B0-0 t ha−1, B1-20 t ha−1, B2-40 t ha−1, and B3-60 t ha−1) and two N levels (N1; low (270 kg N ha−1) and N2; high (360 kg N ha−1)), on rice (cultivar Zhenguiai) grown in pots. Significant increases in the average soil microbial biomass N (SMBN) (88%) and carbon (87%) were recorded at the highest rate of 60-ton ha−1B and 360 kg N ha−1 compared to the control (N1C) during both seasons (S1 and S2). The photochemical efficiency (Fv/Fm), quantum yield of the photosystem (PS) II (ΦPS II), electron transport rate (ETR), and photochemical quenching (qP) were enhanced at low rates of biochar applications (20 to 40 t B ha−1) for high and low N rates across the seasons. Nitrate reductase (NR), glutamine synthetase (GS), and glutamine 2-oxoglutarate aminotransferase (GOGAT) activity were, on average, 39%, 55%, and 63% higher in the N1B3, N2B2, and N2B3 treatments, respectively than the N1C. The grain quality was higher in the N1B3 treatment than the N1C, i.e., the protein content (PC), amylose content (AC), percent brown rice (BRP), and percent milled rice (MRP) were, on average, 16%, 28%, 4.6%, and 5% higher, respectively in both seasons. The results of this study indicated that biochar addition to the soil in combination with N fertilizers increased the dry matter (DM) content, N uptake, and grain yield of rice by 24%, 27%, and 64%, respectively, compared to the N1C.
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Affiliation(s)
- Izhar Ali
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Saif Ullah
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Liang He
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Quan Zhao
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Anas Iqbal
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Shangqing Wei
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Tariq Shah
- Department of Agronomy, Faculty of Crop Production Sciences, University of Agriculture, Peshawar, Pakistan
| | - Niyaz Ali
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, Guangxi, China
| | - Yan Bo
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Muhammad Adnan
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Amanullah
- Department of Agronomy, Faculty of Crop Production Sciences, University of Agriculture, Peshawar, Pakistan
| | - Ligeng Jiang
- Key Laboratory of Crop Cultivation and Farming System, College of Agriculture, Guangxi University, Nanning, Guangxi, China
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29
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Ali N, Lin Y, Qing Z, Xiao D, Ud Din A, Ali I, Lian T, Chen B, Wen R. The Role of Agriculture in the Dissemination of Class 1 Integrons, Antimicrobial Resistance, and Diversity of Their Gene Cassettes in Southern China. Genes (Basel) 2020; 11:genes11091014. [PMID: 32872161 PMCID: PMC7564866 DOI: 10.3390/genes11091014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022] Open
Abstract
Integrons are hot spots for acquiring gene cassettes from the environment and play a major role in the bacterial evolution and dissemination of antimicrobial resistance (AMR), thus posing a serious threat. There are currently studies on integrons and antibiotic resistance genes; however, the presence and association of integrons in different agricultural crops and their subsequent dissemination and role in AMR have not been reported previously. This study examines the abundance of integrons, their gene cassette diversity in various crop soils, and their role in the dissemination of AMR in the southern region of China. Samples from different agri-crop soil, such as rice (R.S), sugarcane (S.S), citrus (C.S), banana (B.S), agricultural runoff (the point where the runoff of all sites meet (R.O)), and wild (non-agricultural) soil (W.S), were collected. Quantitative PCR was used to determine the abundance of integrons, and clone libraries were constructed to examine the gene cassette arrays. All the tested samples were found positive for Class-I (CL1) integrons and revealed a higher concentration and higher relative abundance of R.S than the others, with the least found at the W.S site. The W.S CL1 cassette arrays were found empty, and no putative conserved domains were found. The R.O was found to contain a high number of gene cassettes with various functions, while the smallest number of gene cassettes was found in the S.S among the crop soils. Most of the gene cassettes presented by the R.O were primarily shared with other sites, and the antibiotic-resistant genes were consistently observed to be dominant. The constructed clone libraries represented a diverse gene cassette array with 16% novel gene cassettes that play a vital role in pathogenesis, transportation, biosynthesis, and AMR. Most resistance-related gene cassettes were associated with the genes encoding resistance to quaternary ammonium compound (QAC) and aminoglycosides. This study highlights the significant differences in the abundance of integrons among various agricultural soils and offers deep insight into the pools of gene cassettes that play a key role in the dissemination of integrons and AMR.
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Affiliation(s)
- Niyaz Ali
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; (N.A.); (Y.L.); (Z.Q.); (D.X.); (I.A.); (B.C.)
| | - Yinfu Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; (N.A.); (Y.L.); (Z.Q.); (D.X.); (I.A.); (B.C.)
| | - Zhen Qing
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; (N.A.); (Y.L.); (Z.Q.); (D.X.); (I.A.); (B.C.)
| | - Dan Xiao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; (N.A.); (Y.L.); (Z.Q.); (D.X.); (I.A.); (B.C.)
| | - Ahmad Ud Din
- Drug Discovery Research Center, South West Medical University, Luzhou 646000, China;
| | - Izhar Ali
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; (N.A.); (Y.L.); (Z.Q.); (D.X.); (I.A.); (B.C.)
| | - Tengxiang Lian
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, South China Agricultural University, Guangzhou 510642, China;
| | - Baoshan Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; (N.A.); (Y.L.); (Z.Q.); (D.X.); (I.A.); (B.C.)
- Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Ronghui Wen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bio-Resources, College of Life Science and Technology, Guangxi University, Nanning 530004, China; (N.A.); (Y.L.); (Z.Q.); (D.X.); (I.A.); (B.C.)
- Correspondence: ; Tel.: +86-13669614062
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