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Yang X, Zhang K, Chang T, Shaghaleh H, Qi Z, Zhang J, Ye H, Hamoud YA. Interactive Effects of Microbial Fertilizer and Soil Salinity on the Hydraulic Properties of Salt-Affected Soil. PLANTS (BASEL, SWITZERLAND) 2024; 13:473. [PMID: 38498433 PMCID: PMC10891606 DOI: 10.3390/plants13040473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/30/2024] [Accepted: 02/03/2024] [Indexed: 03/20/2024]
Abstract
Significant research has been conducted on the effects of fertilizers or agents on the sustainable development of agriculture in salinization areas. By contrast, limited consideration has been given to the interactive effects of microbial fertilizer (MF) and salinity on hydraulic properties in secondary salinization soil (SS) and coastal saline soil (CS). An incubation experiment was conducted to investigate the effects of saline soil types, salinity levels (non-saline, low-salinity, and high-salinity soils), and MF amounts (32.89 g kg-1 and 0 g kg-1) on soil hydraulic properties. Applied MF improved soil water holding capacity in each saline soil compared with that in CK, and SS was higher than CS. Applied MF increased saturated moisture, field capacity, capillary fracture moisture, the wilting coefficient, and the hygroscopic coefficient by 0.02-18.91% in SS, while it was increased by 11.62-181.88% in CS. It increased soil water supply capacity in SS (except for high-salinity soil) and CS by 0.02-14.53% and 0.04-2.34%, respectively, compared with that in CK. Soil available, readily available, and unavailable water were positively correlated with MF, while soil gravity and readily available and unavailable water were positively correlated with salinity in SS. Therefore, a potential fertilization program with MF should be developed to increase hydraulic properties or mitigate the adverse effects of salinity on plants in similar SS or CS areas.
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Affiliation(s)
- Xu Yang
- College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China; (X.Y.); (Y.A.H.)
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210024, China
- China Meteorological Administration Hydro-Meteorology Key Laboratory, Hohai University, Nanjing 210024, China
| | - Ke Zhang
- College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China; (X.Y.); (Y.A.H.)
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210024, China
- China Meteorological Administration Hydro-Meteorology Key Laboratory, Hohai University, Nanjing 210024, China
- Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210024, China
- Key Laboratory of Water Big Data Technology of Ministry of Water Resources, Hohai University, Nanjing 210024, China
| | - Tingting Chang
- College of Agricultural Science and Engineering, Hohai University, Nanjing 211100, China; (T.C.); (J.Z.)
| | - Hiba Shaghaleh
- College of Environment, Hohai University, Nanjing 210024, China;
| | - Zhiming Qi
- Department of Bioresource Engineering, McGill University, Montreal, QC H9X 3V9, Canada;
| | - Jie Zhang
- College of Agricultural Science and Engineering, Hohai University, Nanjing 211100, China; (T.C.); (J.Z.)
| | - Huan Ye
- Nanjing Hydraulic Research Institute, Nanjing 210029, China;
| | - Yousef Alhaj Hamoud
- College of Hydrology and Water Resources, Hohai University, Nanjing 210024, China; (X.Y.); (Y.A.H.)
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing 210024, China
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Zhao S, Zhang A, Zhao Q, Zhang Y, Wang D, Su L, Lin X, Sun Y, Yan L, Wang X, An N, Dong Y, Tan J, Long Y, Lu Z, Li L. Effects of coffee pericarp and litter mulsching on soil microbiomes diversity and functions in a tropical coffee plantation, South China. Front Microbiol 2024; 14:1323902. [PMID: 38260889 PMCID: PMC10800520 DOI: 10.3389/fmicb.2023.1323902] [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: 10/18/2023] [Accepted: 12/11/2023] [Indexed: 01/24/2024] Open
Abstract
In recent decades, ecological cyclic cultivation models have attracted increasing attention, primarily because the decomposition of crop residues and litter enhances soil organic matter content, thereby altering the soil microenvironment and regulating the diversity and functions of soil microbial communities. However, the effects of different coffee waste mulching on the diversity of soil microbial communities and their functions are still unclear. Therefore, this study set up four kinds of covering treatments: uncovered coffee waste (C), covered coffee litter (L), covered coffee pericarp (P), and both covered coffee litter and pericarp (PL). The results showed that compared to the control, coffee pericarp mulching significantly increased the soil available potassium (SAK) content by 18.45% and alkali hydrolyzed N (SAN) content by 17.29%. Furthermore, coffee pericarp mulching significantly increased bacterial richness and diversity by 7.75 and 2.79%, respectively, while litter mulching had little effect on bacterial abundance and diversity was smaller. The pericarp mulching significantly increased the abundance of Proteus by 22.35% and the abundance of Chlamydomonas by 80.04%, but significantly decreased the abundance of Cyanobacteria by 68.38%, while the coffee litter mulching significantly increased the abundance of Chlamydomonas by 48.28%, but significantly decreased the abundance of Cyanobacteria by 73.98%. The increase in soil SAK promoted bacterial Anoxygenic_photoautotrophy, Nitrogen_respiration, Nitrate_respiration, Nitrite_respiration, and Denitrification functions. The above results indicate that the increase in available soil potassium and alkali hydrolyzed N content under coffee pericarp cover is the main reason for promoting the diversity and richness of bacterial community and promoting the changes in bacterial community structure and function. The use of coffee pericarps in coffee plantations for ecological recycling helps to improve the diversity of the soil microbial community and maintain the relative stability of the microbial community structure and function, promoting soil health conservation and the sustainable development of related industries.
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Affiliation(s)
- Shaoguan Zhao
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Ang Zhang
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Qingyun Zhao
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Yaoyu Zhang
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
- College of Tropical Crop Science, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Dong Wang
- School of Life Science, Henan University, Kaifeng, Henan, China
| | - Lanxi Su
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Xingjun Lin
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Yan Sun
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Lin Yan
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
- Yan Lin Expert Workstation of Yunnan Province, Baoshan, Yunnan, China
| | - Xianwen Wang
- Baoshan Comprehensive Inspection Center For Quality Technology Supervision, Baoshan, China
| | - Na An
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Yunping Dong
- College of Tropical Crop Science, Yunnan Agricultural University, Kunming, Yunnan, China
- Baoshan Comprehensive Inspection Center For Quality Technology Supervision, Baoshan, China
| | - Jun Tan
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Yuzhou Long
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
| | - Zhiqing Lu
- Spice and Beverage Research Institute of Chinese Academy of Tropical Agricultural Science, Wanning, Hainan, China
- College of Tropical Crop Science, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Lihua Li
- College of Tropical Crop Science, Yunnan Agricultural University, Kunming, Yunnan, China
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Li Y, Yang H, Su Y, Gong X, Yao B, Cheng L. Phosphorus Coupled with High Nitrogen Addition Exerts a Great Influence on Soil Bacterial Community in a Semiarid Grassland. MICROBIAL ECOLOGY 2023; 86:2993-3002. [PMID: 37712979 DOI: 10.1007/s00248-023-02297-5] [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: 04/15/2023] [Accepted: 08/29/2023] [Indexed: 09/16/2023]
Abstract
Nitrogen (N) and phosphorus (P) addition, either individually or in combination, has been demonstrated to enhance plant productivity in grassland ecosystems. Soil bacterial community, which is the driver of litter decomposition and nutrient cycling, is assumed to control responses of terrestrial ecosystem structure and function to N and P addition. Using a high-throughput Illumina MiSeq sequencing platform, we conducted a 9-year field experiment of N (0, 5, 10, and 20 g N m-2 yr-1) and P (0 and 10 g P m-2 yr-1) additions in the Inner Mongolian steppes to elucidate long-term effects of N and P addition on soil bacterial richness, diversity and composition. We found that N addition reduced the relative abundance of Acidobacteria, Chloroflexi, and Nitrospirae, while increased that of Bacteroides. The results showed that the bacterial biomarker was enriched in P addition treatments, either individually or combined with N addition. Both N and P addition altered the bacterial community structure, while only N addition greatly decreased bacterial richness and diversity. More importantly, we showed that all of these effects were most significant in N3P treatment (20 g N m-2 yr-1 and 10 g P m-2 yr-1), implying that P coupled with a high-level N addition exerted a great influence on soil bacterial community. Structural equation models revealed that N and P addition had a great direct effect on soil bacterial community and an indirect effect on it mainly by changing the litter biomass. Our findings highlighted that severe niche differentiation was induced by P along with a high-level N, further emphasizing the importance of simultaneously evaluating response of soil bacterial community to N and P addition, especially in the context of increasing anthropogenic nutrient additions.
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Affiliation(s)
- Yulin Li
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
- Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Tongliao, 028300, China.
| | - Hongling Yang
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
- Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Tongliao, 028300, China.
| | - Yongzhong Su
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Tongliao, 028300, China
| | - Xiangwen Gong
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Bo Yao
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Tongliao, 028300, China
| | - Li Cheng
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Tongliao, 028300, China
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Wang L, Hamel C, Lu P, Wang J, Sun D, Wang Y, Lee SJ, Gan GY. Using enzyme activities as an indicator of soil fertility in grassland - an academic dilemma. FRONTIERS IN PLANT SCIENCE 2023; 14:1175946. [PMID: 37484467 PMCID: PMC10360189 DOI: 10.3389/fpls.2023.1175946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/06/2023] [Indexed: 07/25/2023]
Abstract
Grasslands play an important role in conserving natural biodiversity and providing ecosystem functions and services for societies. Soil fertility is an important property in grassland, and the monitoring of soil fertility can provide crucial information to optimize ecosystem productivity and sustainability. Testing various soil physiochemical properties related to fertility usually relies on traditional measures, such as destructive sampling, pre-test treatments, labor-intensive procedures, and costly laboratory measurements, which are often difficult to perform. However, soil enzyme activity reflecting the intensity of soil biochemical reactions is a reliable indicator of soil properties and thus enzyme assays could be an efficient alternative to evaluate soil fertility. Here, we review the latest research on the features and functions of enzymes catalyzing the biochemical processes that convert organic materials to available plant nutrients, increase soil carbon and nutrient cycling, and enhance microbial activities to improve soil fertility. We focus on the complex relationships among soil enzyme activities and functions, microbial biomass, physiochemical properties, and soil/crop management practices. We highlight the biochemistry of enzymes and the rationale for using enzyme activities to indicate soil fertility. Finally, we discuss the limits and disadvantages of the potential new molecular tool and provide suggestions to improve the reliability and feasibility of the proposed alternative.
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Affiliation(s)
- Li Wang
- College of Life and Environmental Sciences, State & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Zhejiang Provincial Key Lab for Water Environment and Marine Biological Resources Protection, Zhejiang Provincial Collaborative Innovation Center for Tideland Reclamation and Ecological Protection, Wenzhou University, Wenzhou, Zhejiang, China
| | - Chantal Hamel
- Soil Microbiology Scientist, Commerciale, Rivière-à-Pierre, QC, Canada
| | - Peina Lu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
| | - Junying Wang
- College of Life and Environmental Sciences, State & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Zhejiang Provincial Key Lab for Water Environment and Marine Biological Resources Protection, Zhejiang Provincial Collaborative Innovation Center for Tideland Reclamation and Ecological Protection, Wenzhou University, Wenzhou, Zhejiang, China
| | - Dandi Sun
- College of Life and Environmental Sciences, State & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Zhejiang Provincial Key Lab for Water Environment and Marine Biological Resources Protection, Zhejiang Provincial Collaborative Innovation Center for Tideland Reclamation and Ecological Protection, Wenzhou University, Wenzhou, Zhejiang, China
| | - Yijia Wang
- College of Life and Environmental Sciences, State & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Zhejiang Provincial Key Lab for Water Environment and Marine Biological Resources Protection, Zhejiang Provincial Collaborative Innovation Center for Tideland Reclamation and Ecological Protection, Wenzhou University, Wenzhou, Zhejiang, China
| | - Soon-Jae Lee
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Gary Y. Gan
- College of Life and Environmental Sciences, State & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Zhejiang Provincial Key Lab for Water Environment and Marine Biological Resources Protection, Zhejiang Provincial Collaborative Innovation Center for Tideland Reclamation and Ecological Protection, Wenzhou University, Wenzhou, Zhejiang, China
- Agroecosystems, the uBC-Soil Group, Kelowna, BC, Canada
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Yang H, Zhang R, Li Y, Meng F, Ma J. Impact of Drip Irrigation and Nitrogen Fertilization on Soil Microbial Diversity of Spring Maize. PLANTS (BASEL, SWITZERLAND) 2022; 11:3206. [PMID: 36501245 PMCID: PMC9736923 DOI: 10.3390/plants11233206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Given the shortage of water resources and excessive application of nitrogen fertilizers in irrigated areas, we explored the effect of water−nitrogen coupling on soil microbial diversity in maize fields irrigated using shallow buried droppers. A field experiment (split-plot design) was used with irrigation amounts set at 40%, 50%, and 60% of the conventional amount; furthermore, 13 water and nitrogen coupling treatments were designed. The secondary area was the nitrogen application level, corresponding to 50%, 70%, and the original conventional application amounts. The results showed that the effect of irrigation amount on bacterial community composition was greater than that of nitrogen, whereas the effect of nitrogen on fungi was greater than that on bacteria. No significant difference was detected in the α diversity index or species richness of bacteria and fungi. Available phosphorus and organic carbon contents significantly correlated with the community structure of soil bacteria (p < 0.05). The relative abundances of bacteria and fungi were stable with the decrease of nitrogen application rate at the irrigation rate of 2000 m3 ha−1. With the decrease of irrigation amount, the relative abundance of bacteria and fungi was stable under the treatment of 210 kg ha−1 nitrogen fertilizer. Moreover, the relative abundance of nitrogen-fixing bacteria related to the nitrogen cycle was increased by irrigation of 2000 m3 ha−1 and nitrogen application of 210 kg ha−1. Moderate reduction of subsequent N supply should be as a prior soil management option in a high N input agroecosystem.
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Affiliation(s)
- Hengshan Yang
- College of Agronomy, Inner Mongolia Minzu University, Tongliao 028000, China
- Research Center of Forage Crop Engineering Technology, Tongliao 028042, China
| | - Ruifu Zhang
- College of Agronomy, Inner Mongolia Minzu University, Tongliao 028000, China
- Research Center of Forage Crop Engineering Technology, Tongliao 028042, China
| | - Yuanyuan Li
- College of Agronomy, Inner Mongolia Minzu University, Tongliao 028000, China
- Research Center of Forage Crop Engineering Technology, Tongliao 028042, China
| | - Fanhao Meng
- College of Agronomy, Inner Mongolia Minzu University, Tongliao 028000, China
- Research Center of Forage Crop Engineering Technology, Tongliao 028042, China
| | - Jinhui Ma
- College of Agronomy, Inner Mongolia Minzu University, Tongliao 028000, China
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