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Khan S, Gao H, Milham P, Eltohamy KM, Ullah H, Mu H, Gao M, Yang X, Hamid Y, Hooda PS, Shaheen SM, Wu N. Predicting the governing factors for the release of colloidal phosphorus using machine learning. CHEMOSPHERE 2024; 362:142699. [PMID: 38944354 DOI: 10.1016/j.chemosphere.2024.142699] [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: 04/07/2024] [Revised: 06/06/2024] [Accepted: 06/23/2024] [Indexed: 07/01/2024]
Abstract
Predicting the parameters that influence colloidal phosphorus (CP) release from soils under different land uses is critical for managing the impact on water quality. Traditional modeling approaches, such as linear regression, may fail to represent the intricate relationships that exist between soil qualities and environmental influences. Therefore, in this study, we investigated the major determinants of CP release from different land use/types such as farmland, desert, forest soils, and rivers. The study utilizes the structural equation model (SEM), multiple linear regression (MLR), and three machine learning (ML) models (Random Forest (RF), Support Vector Regression (SVR), and eXtreme Gradient Boosting (XGBoost)) to predict the release of CP from different soils by using soil iron (Fe), aluminum (Al), calcium (Ca), pH, total organic carbon (TOC) and precipitation as independent variables. Results show that colloidal-cations (Fe, Al, Ca) and colloidal-TOC strongly influence CP release, while bioclimatic variables (precipitation) and pH have weaker effects. XGBoost outperforms the other models with an R2 of 0.94 and RMSE of 0.09. SHapley Additive Explanations described the outcomes since XGBoost is accurate. The relative relevance ranking indicated that colloidal TOC had the highest ranking in predicting CP. This was supported by the analysis of partial dependence plots, which showed that an increase in colloidal TOC increased soil CP release. According to our research, the SHAP XGBoost model provides significant information that can help determine the variables that considerably influence CP contents as compared to RF, SVM, and MLR.
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Affiliation(s)
- Sangar Khan
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, 315211, China; Donghai Institute, Ningbo University, Ningbo, 315211, China; Zhejiang Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, 315211, China
| | - Huimin Gao
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, 315211, China; Donghai Institute, Ningbo University, Ningbo, 315211, China; Zhejiang Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, 315211, China
| | - Paul Milham
- Hawkesbury Institute for the Environment, University of Western Sydney, LB 1797, Penrith, New South Wales, 2751, Australia
| | - Kamel Mohamed Eltohamy
- College of Environmental Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Water Relations and Field Irrigation Department, Agricultural and Biological Research Division, National Research Centre, 12622, Cairo, Egypt
| | - Habib Ullah
- Innovation Center of Yangtze River Delta, Zhejiang University, Zhejiang, 311400, China
| | - Hongli Mu
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, 315211, China; Donghai Institute, Ningbo University, Ningbo, 315211, China; Zhejiang Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, 315211, China
| | - Meixiang Gao
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, 315211, China; Donghai Institute, Ningbo University, Ningbo, 315211, China; Zhejiang Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, 315211, China
| | - Xiaodong Yang
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, 315211, China; Donghai Institute, Ningbo University, Ningbo, 315211, China; Zhejiang Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, 315211, China
| | - Yasir Hamid
- College of Environmental Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Peter S Hooda
- Faculty of Engineering, Computing and the Environment, Kingston University London, UK
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Laboratory of Soil Groundwater Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; King Abdulaziz University, Faculty of Environmental Sciences, Department of Agriculture, 21589 Jeddah, Saudi Arabia; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516, Kafr El-Sheikh, Egypt
| | - Naicheng Wu
- Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, 315211, China; Donghai Institute, Ningbo University, Ningbo, 315211, China; Zhejiang Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo, 315211, China; Institute of Hydraulic and Ocean Engineering, Ningbo, 315211, China.
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Yang J, Lu Y, Liu B, Eltohamy KM, Liang X. Performance of an integrated sediment interceptor in removing phosphorus from agricultural drainage water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172458. [PMID: 38641117 DOI: 10.1016/j.scitotenv.2024.172458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Reducing phosphorus (P) loss from agricultural drainage water is challenging. In this study, we aimed to remove P from agricultural drainage water by developing an integrated sediment interceptor with adsorbent modules filled with Zr/Zn nanocomposite-modified ceramsite (ZMC-interceptor). The results of sequential chemical extraction and 31P NMR showed that the contents of H2O-P (1.15 % of total P), NaHCO3-Pi (10.48 % of total P), and ortho-P (orthophosphate, 90.6 % of total P) in the sediments of the ZMC-interceptors were higher than those in nearby field soils. The average enrichment ratios of particulate P (PP, >450 nm), medium-colloidal P (MCP, 220-450 nm), fine-colloidal P (FCP, 1-220 nm), and truly dissolved P (Truly DP, <1 nm) in the sediment over the field soil were 1.37, 1.21, 1.70, and 3.01, respectively. No significant differences were found in the sediment P-trapping function with and without ZMC integrated sediment interceptors. However, the ZMC-interceptors remarkably reduced total P (39.7 % for influent concentrations of 0.19-0.68 mg L-1) from agricultural drainage water compared to those unmodified ceramsite-interceptors (21.7 % for influent concentrations of 0.17-0.66 mg L-1) during the drainage 'window period' (June-August 2022). This was mainly due to the higher removal efficacies of MCP (19.7 %), FCP (23.3 %), and Truly DP (34.8 %) of the ZMC-interceptors. This study highlighted that the ZMC-interceptor not only trapped P in the sediment but also facilitated the removal of different-sized P fractionated from agricultural drainage water.
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Affiliation(s)
- Jiao Yang
- Key Laboratory of Watershed Non-point Source Pollution Control and Water Eco-security of Ministry of Water Resources, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuanyuan Lu
- Key Laboratory of Watershed Non-point Source Pollution Control and Water Eco-security of Ministry of Water Resources, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Boyi Liu
- Key Laboratory of Watershed Non-point Source Pollution Control and Water Eco-security of Ministry of Water Resources, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Kamel Mohamed Eltohamy
- Key Laboratory of Watershed Non-point Source Pollution Control and Water Eco-security of Ministry of Water Resources, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Water Relations & Field Irrigation, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Xinqiang Liang
- Key Laboratory of Watershed Non-point Source Pollution Control and Water Eco-security of Ministry of Water Resources, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Ding S, Li J, Wang Y, He S, Xie H, Fu H, Feng Y, Shaheen SM, Rinklebe J, Xue L. Manure derived hydrochar reduced phosphorus loss risk via an alteration of phosphorus fractions and diversified microbial community in rice paddy soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170582. [PMID: 38309349 DOI: 10.1016/j.scitotenv.2024.170582] [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: 11/01/2023] [Revised: 01/16/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
Phosphorus (P) loss caused by the irrational use of manure organic fertilizer has become a worldwide environmental problem, which has caused a potential threat to water safety and intensified agricultural non-point source pollution. Hydrothermal carbonization is method with a low-energy consumption and high efficiency to deal with environmental problems. Application of pig manure-derived hydrochar (PMH) to soil exhibited potential of sustainable development compared with the pristine pig manure (PM). However, the effects of PMH on the distribution of P among the fractions/forms and the interaction between microorganisms and P forms and its relevance to the potential loss of P in paddy fields has not been clarified. Therefore, in this study, a soil column experiment was conducted using the untreated soil (control), and the PM, PMH1 (PMH derived at 180 °C), and PMH2 (PMH derived at 260 °C) treated soils (at the dose of 0.05 %) and rice was cultivated to investigate the effects of PM and PMH on the P fractions, mobilization, ad potential loss via the induced changes on soil microbial community after a complete growing season of rice. The trend of P utilization was evaluated by P speciation via continuous extraction and 31P NMR. The addition of PMH reduced the proportion of residual P in soil by 23.8-26.3 %, and increased the proportion of HCl-P and orthophosphate by 116.2-158.6 % and 6.1-6.8 % compared to PM. The abundance of gcd gene developed after the application of PMH2, which enhanced the mobile forms of soil P utilization via secreting gluconic acid. The network diagram analysis concluded that the changes in various P forms were mainly related to Proteobacteria, Bacteroides, Firmicutes and Acidobacteria. The results illustrated that PMH mitigate the potential risk of P loss more than PM by altering P fractions and affecting soil microbial community.
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Affiliation(s)
- Shudong Ding
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, National Agricultural Experiment Station for Agricultural Environment, (Liu He), Ministry of Agriculture and Rural Affairs; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jing Li
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, National Agricultural Experiment Station for Agricultural Environment, (Liu He), Ministry of Agriculture and Rural Affairs; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yu Wang
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Shiying He
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, National Agricultural Experiment Station for Agricultural Environment, (Liu He), Ministry of Agriculture and Rural Affairs; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Huifang Xie
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Haibin Fu
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, National Agricultural Experiment Station for Agricultural Environment, (Liu He), Ministry of Agriculture and Rural Affairs; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yanfang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, National Agricultural Experiment Station for Agricultural Environment, (Liu He), Ministry of Agriculture and Rural Affairs; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589 Jeddah, Saudi Arabia; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516 Kafr El-Sheikh, Egypt
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Lihong Xue
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, National Agricultural Experiment Station for Agricultural Environment, (Liu He), Ministry of Agriculture and Rural Affairs; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
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Guo L, Liu S, Zhang P, Hakeem A, Song H, Yu M, Wang F. Effects of Different Mulching Practices on Soil Environment and Fruit Quality in Peach Orchards. PLANTS (BASEL, SWITZERLAND) 2024; 13:827. [PMID: 38592801 PMCID: PMC10975533 DOI: 10.3390/plants13060827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 04/11/2024]
Abstract
Mulching practices have been used to improve peach growth and production across the globe. However, the impact of mulching on the physiochemical properties and soil characteristics of orchards remains largely unknown. This study aimed to decipher the impacts of various mulching patterns on the soil environment and the quality of Prunus persica fruit in "Zijinhuangcui". Three treatments were set up, which included black ground fabric mulch (BF) and two living grass mulch treatments (HV: hairy vetch and RG: ryegrass). The results showed that different mulching treatments have different effects on soil, plant growth, and fruit quality. Living grass mulch treatments, especially the HV treatment, significantly improved soil nutrients by enhancing nitrogen-related indicators. Of note, the BF treatment had higher total phosphorus and available phosphorus contents than the HV and RG treatments. The HV treatment had the highest relative abundance of Proteobacteria (33.49%), which is associated with symbiotic nitrogen fixation, followed by RG (25.62%), and BF (22.38%) at the young fruit stage. Similarly, the abundance of Terrimonas, which has a unique nitrogen fixation system at the genus level, was significantly higher in the living grass mulch (HV, 1.30-3.13% and RG, 2.27-4.24%) than in the BF treatment. Living grass mulch also promoted tree growth, increased fruit sugar content, sugar-related components, and sugar-acid ratio, and reduced the acid content. Collectively, the findings of this study show that living grass mulch can promote tree growth and improve fruit quality by improving soil fertility, bacterial diversity, and richness.
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Affiliation(s)
- Lei Guo
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China;
| | - Siyu Liu
- Fruit Crop Genetic Improvement and Seedling Propagation Engineering Research Center of Jiangsu Province, Nanjing 210095, China
| | - Peizhi Zhang
- Fruit Crop Genetic Improvement and Seedling Propagation Engineering Research Center of Jiangsu Province, Nanjing 210095, China
| | - Abdul Hakeem
- Fruit Crop Genetic Improvement and Seedling Propagation Engineering Research Center of Jiangsu Province, Nanjing 210095, China
| | - Hongfeng Song
- Institute of Pomology, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing 210014, China (M.Y.)
| | - Mingliang Yu
- Institute of Pomology, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing 210014, China (M.Y.)
| | - Falin Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China;
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Sun K, Cui Y, Sun L, Wei B, Wang Y, Li S, Zhou C, Wang Y, Zhang W. Optimizing the manure substitution rate based on phosphorus fertilizer to enhance soil phosphorus turnover and root uptake in pepper ( Capsicum). FRONTIERS IN PLANT SCIENCE 2024; 15:1356861. [PMID: 38504886 PMCID: PMC10948398 DOI: 10.3389/fpls.2024.1356861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024]
Abstract
Introduction In contemporary agriculture, the substitution of manure for chemical fertilizer based on phosphorus (P) input in vegetable production has led to a significant reduction in P fertilizer application rates, while, the effect of manure substitution rates on soil P transformation and uptake by root remain unclear. Methods This research conducts a pot experiment with varying manure substitution rates (0%, 10%, 20%, 30%, 40%, 50%, 75% and 100%) based on P nutrient content to elucidate the mechanisms through which manure substitution affects P uptake in pepper. Results and discussion The result showed that shoot and root biomass of pepper gradually increased as manure substitution rate from 10% to 40%, and then gradually decreased with further increases in the substitution rate. Soil alkaline phosphatase activity and arbuscular mycorrhizal (AM) colonization gradually increased with manure substitution rates improvement. Specifically, when the substitution rate reached 30%-40%, the alkaline phosphatase activity increased by 24.5%-33.8% compared to the fertilizer treatment. In contrast, phytase activity and the relative expression of phosphate transporter protein genes in the root system was declined after peaking at 30% manure substitution. Additionally, soil available P remained moderate under 30%-40% substitution rate, which was reduced by 8.6%-10.2% compared to that in chemical fertilizer treatment, while microbial biomass P was comparable. In the current study, soil labile P similar to or even higher than that in chemical fertilizer treatment when the substitution rate was ≤40%. Correlation heatmaps demonstrated a significant and positive relationship between soil available P and factors related to labile P and moderately labile P. Conclusion This finding suggested that substituting 30%-40% of chemical P with manure can effectively enhance root length, AM colonization, soil enzyme activity, soil labile P, and consequently improve P uptake in pepper. These findings provide valuable insights for future organic agricultural practices that prioritize P supply, aiming to standardize organic P management in farmland and achieve high crop yields and maintain soil health.
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Affiliation(s)
- Kai Sun
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
- Key Laboratory of Green and Low-carbon Agriculture in Southwest Mountain, Ministry of Agriculture and Rural Affairs, Chongqing, China
| | - Yutao Cui
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
| | - Linglulu Sun
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
| | - Bingli Wei
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
- Key Laboratory of Green and Low-carbon Agriculture in Southwest Mountain, Ministry of Agriculture and Rural Affairs, Chongqing, China
| | - Yuan Wang
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
- Key Laboratory of Green and Low-carbon Agriculture in Southwest Mountain, Ministry of Agriculture and Rural Affairs, Chongqing, China
| | - Shunjin Li
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
- Key Laboratory of Green and Low-carbon Agriculture in Southwest Mountain, Ministry of Agriculture and Rural Affairs, Chongqing, China
| | - Chengxiang Zhou
- State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Yixia Wang
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
| | - Wei Zhang
- College of Resources and Environment, Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Academy of Agricultural Sciences, Institute of Innovation and Entrepreneurship Hanhong College, Southwest University, Chongqing, China
- Key Laboratory of Green and Low-carbon Agriculture in Southwest Mountain, Ministry of Agriculture and Rural Affairs, Chongqing, China
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Wang Z, Eltohamy KM, Liu B, Jin J, Liang X. Effects of drying-rewetting cycles on colloidal phosphorus composition in paddy and vegetable soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168016. [PMID: 37875203 DOI: 10.1016/j.scitotenv.2023.168016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 10/26/2023]
Abstract
The impact of drying-rewetting (DRW) cycles on soil phosphorus (P) behavior is well-established; however, its impact on the different-sized colloidal P (CP) in agricultural soils is still unclear. To investigate the effect of DRW events on the mobilization of CP in agricultural soils, and to understand how this impact varies with different DRW cycles and drought intensities, the study explored the role of soil type, CP fractions, and compositions. The concentration of CP was measured in paddy soil and vegetable soil after 3, 6, and 9 DRW cycles of varying intensities. The CP was then fractionated into fine-sized colloids (FC-P; 1-220 nm), medium-sized colloids (MC-P; 220-450 nm), and coarse-sized colloids (CC-P; 450-1000 nm) through soil supernatant filtration. CP accounted for 71.1 % and 55.6 % of water-dispersible colloidal P (<1000 nm) in paddy and vegetable soils, with FC-P constituting the greatest proportion at 50 % and 44 % of CP respectively. The colloidal fraction correlated with organic carbon, aluminum, and iron. DRW cycles did not change the overall distribution of the three CP size fractions. However, they affected the concentration and composition of CP. This study concluded that DRW can have significant implications for nutrient release and water quality in agricultural soils and that maintaining soil moisture at 50 % to 70 % of water-holding capacity could alleviate CP accumulation resulting from DRW cycles.
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Affiliation(s)
- Ziwan Wang
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Kamel Mohamed Eltohamy
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Boyi Liu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Junwei Jin
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xinqiang Liang
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China.
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Li H, Ren R, Zhang H, Zhang G, He Q, Han Z, Meng S, Zhang Y, Zhang X. Factors regulating interaction among inorganic nitrogen and phosphorus species, plant uptake, and relevant cycling genes in a weakly alkaline soil treated with biochar and inorganic fertilizer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167280. [PMID: 37742950 DOI: 10.1016/j.scitotenv.2023.167280] [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: 06/20/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
To highlight how biochar affects the interaction between inorganic nitrogen species (ammonium nitrogen, nitrate nitrogen, and nitrite nitrogen: NH4+-N, NO3¯-N, and NO2¯-N) and phosphorus species (calcium phosphate, iron phosphate, and aluminum phosphate: CaP, FeP and AlP) in soil and plant uptake of these nutrients, walnut shell (WS)- and corn cob (CC)-derived biochars (0.5 %, 1 %, 2 %, and 4 %, w/w) were added to a weakly alkaline soil, and then Chinese cabbages were planted. The results showed that the changes in soil inorganic nitrogen were related to biochar feedstock, pyrolysis temperature, and application rate. For soil under the active nitrification condition (dominant NO3¯-N), a significant decrease in the NH4+-N/NO3¯-N ratio after biochar addition indicates enhanced nitrification (excluding WS-derived biochars at 2 % and 4 %), which can be explained by the most positive response of ammonia-oxidizing archaeal amoA to biochar addition. The CC-derived biochar more effectively enhanced soil nitrification than WS-derived biochar did. The addition of 4 % of biochars significantly increased soil inorganic phosphorus, and the addition of CC-derived biochars more effectively increased Ca2P than WS-derived biochars. Biochars significantly decreased plant uptake of phosphorus, while generally had little influence on plant uptake of nitrogen. Interestingly, NO2¯-N in soil significantly positively correlated with total phosphorus in both soil and plant, and significantly negatively correlated with phoC, indicating that a certain degree of NO2¯-N accumulation in soil slightly facilitated plant uptake of phosphorus but inhibited phoC-harboring bacteria. The NO3¯-N in soil significantly positively correlated with Ca2P and Ca8P, while the NH4+-N/NO3¯-N ratio significantly negatively correlated with Ca10P and FeP, indicating that the enhanced nitrification seemed to facilitate the change in phosphorus to readly available ones. This study will help determine how to scientifically and rationally use biochar to regulate inorganic nitrogen and phosphorus species in soil and plant uptake of these nutrients.
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Affiliation(s)
- Hongyan Li
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi Province, China
| | - Rui Ren
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi Province, China
| | - Hongyu Zhang
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi Province, China
| | - Guixiang Zhang
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi Province, China.
| | - Qiusheng He
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi Province, China
| | - Zhiwang Han
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi Province, China
| | - Shuhui Meng
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi Province, China
| | - Yanli Zhang
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Xiaohui Zhang
- Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education, Shanxi Datong University, 037009, China
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Jin J, Fang Y, Liu C, Eltohamy KM, He S, Li F, Lu Y, Liang X. Reduced colloidal phosphorus release from paddy soils: A synergistic effect of micro-/nano-sized biochars and intermittent anoxic condition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167104. [PMID: 37717774 DOI: 10.1016/j.scitotenv.2023.167104] [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: 07/31/2023] [Revised: 09/09/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
Colloidal phosphorus (CP) has high mobility and great loss risk; their biogeochemical processes are influenced by agricultural management such as redox oscillation and biochar-amendment application. This study monitored CP concentration in pore-water, soil P species and P adsorption capacity, to investigate CP release from paddy soils as affected by the interactive effects of oxygen status (continuous anoxic/oxic for 12 days, CA/CO; intermittent anoxic for 2, 4, 6, 8, 10 days during the 12-day cycle, IA2-10) and management (soil only, CK; bulk/micro/nano-sized biochar with various properties: SBBulk, SBMicro, and SBNano). Compared to the control (0.25-0.84 mg L-1, CK-CA), the single intermittent anoxic treatment (CK-IA) reduced CP concentrations by 45 %, due to the rise of Eh and pH and the decline of the degree of P saturation along with the increased soil Fe/Al-P and organic-P. Longer anoxic duration under the CK-IA reduced CP release, probably donated from massive production of redox-stable amorphous Fe/Al-bound P. The single biochar treatment (SB-CA: SBBulk-CA > SBMicro-CA > SBNano-CA) decreased CP release by 37 % as compared to the CK-CA, ascribed to the increased soil pH, Eh, and P adsorption capacity. The combined treatment (SB-IA: SBBulk-IA2 > SBNano-IA10) synergistically reduced CP release by 68 % in comparison with the CK-CA, due to the increase of adsorption through interactions of soil Fe/Al/Ca- and organic-P. Therefore, nano-sized biochar and long intermittent anoxic duration are recommended for reducing CP release from paddy soils.
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Affiliation(s)
- Junwei Jin
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yunying Fang
- Australian Rivers Institute, School of Environment and Science, Griffith University, Nathan, Campus, Queensland 4111, Australia
| | - Chunlong Liu
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 130102, PR China
| | - Kamel Mohamed Eltohamy
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Shuang He
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Fayong Li
- College of Water Resources and Architectural Engineering, Tarim University, Xinjiang 843300, PR China
| | - Yuanyuan Lu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Xinqiang Liang
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 130102, PR China.
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Fan Y, Lv G, Chen Y, Chang Y, Li Z. Differential effects of cow dung and its biochar on Populus euphratica soil phosphorus effectiveness, bacterial community diversity and functional genes for phosphorus conversion. FRONTIERS IN PLANT SCIENCE 2023; 14:1242469. [PMID: 37780507 PMCID: PMC10538999 DOI: 10.3389/fpls.2023.1242469] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/22/2023] [Indexed: 10/03/2023]
Abstract
Introduction Continuous monoculture leading to soil nutrient depletion may cause a decline in plantation productivity. Cow dung is typically used as a cheap renewable resource to improve soil nutrient status. In this study, our purpose was to compare the effects of different cow dung return methods (direct return and carbonization return) on soil microbial communities and phosphorus availability in the root zone (rhizosphere soil and non-rhizosphere soil) of P.euphratica seedlings in forest gardens and to explore possible chemical and microbial mechanisms. Methods Field experiments were conducted. Two-year-old P.euphratica seedlings were planted in the soil together with 7.5 t hm-2 of cow dung and biochar made from the same amount of cow dung. Results Our findings indicated that the available phosphorus content in soil subjected to biochar treatment was considerably greater than that directly treated with cow dung, leading to an increase in the phosphorus level of both aboveground and underground components of P.euphratica seedlings. The content of Olsen-P in rhizosphere and non-rhizosphere soil increased by 134% and 110%, respectively.This was primarily a result of the direct and indirect impact of biochar on soil characteristics. Biochar increased the biodiversity of rhizosphere and non-rhizosphere soil bacteria compared with the direct return of cow dung. The Shannon diversity index of carbonized cow manure returning to field is 1.11 times and 1.10 times of that of direct cow manure returning to field and control, and the Chao1 diversity index is 1.20 times and 1.15 times of that of direct cow manure returning to field and control.Compared to the direct addition of cow dung, the addition of biochar increased the copy number of the phosphorus functional genes phoC and pqqc in the rhizosphere soil. In the biochar treatment, the abundance of the phosphate-solubilizing bacteria Sphingomonas and Lactobacillus was significantly higher than that in the other treatments, it is relative abundance was 4.83% and 2.62%, respectively, which indirectly improved soil phosphorus availability. Discussion The results indicated that different cow dung return methods may exert different effects on phosphorus availability in rhizosphere and non-rhizosphere soils via chemical and microbial pathways. These findings indicated that, compared to the direct return of cow dung, biochar return may exert a more significant impact on the availability of phosphorus in both rhizosphere and non-rhizosphere soils, as well as on the growth of P.euphratica seedlings and the microbial community.
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Affiliation(s)
- Yuxian Fan
- College of Ecology and Environment, Xinjiang University, Urumqi, China
- Key Laboratory of Oasis Ecology of Education Ministry, Xinjiang University, Urumqi, China
- Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Jinghe, China
| | - Guanghui Lv
- College of Ecology and Environment, Xinjiang University, Urumqi, China
- Key Laboratory of Oasis Ecology of Education Ministry, Xinjiang University, Urumqi, China
- Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Jinghe, China
| | - Yudong Chen
- College of Ecology and Environment, Xinjiang University, Urumqi, China
- Key Laboratory of Oasis Ecology of Education Ministry, Xinjiang University, Urumqi, China
- Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Jinghe, China
| | - Yaling Chang
- College of Ecology and Environment, Xinjiang University, Urumqi, China
- Key Laboratory of Oasis Ecology of Education Ministry, Xinjiang University, Urumqi, China
- Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Jinghe, China
| | - Zhoukang Li
- College of Ecology and Environment, Xinjiang University, Urumqi, China
- Key Laboratory of Oasis Ecology of Education Ministry, Xinjiang University, Urumqi, China
- Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Jinghe, China
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Al-Shammari AMA, Hamdi GJ. Genotype and foliar fertilization affect growth, production and accumulation of anthocyanin in red Cabbage. INTERNATIONAL JOURNAL OF VEGETABLE SCIENCE 2023; 29:337-347. [DOI: 10.1080/19315260.2023.2219672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Affiliation(s)
- Aziz Mahdi Abd Al-Shammari
- Department of Horticulture and Landscape Gardening, College of Agriculture, University of Diyala, Baqubah, Iraq
| | - Ghassan Jaafar Hamdi
- Department of Horticulture and Landscape Gardening, College of Agriculture, University of Diyala, Baqubah, Iraq
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Xue P, Hou R, Fu Q, Li T, Wang J, Zhou W, Shen W, Su Z, Wang Y. Potentially migrating and residual components of biochar: Effects on phosphorus adsorption performance and storage capacity of black soil. CHEMOSPHERE 2023; 336:139250. [PMID: 37343640 DOI: 10.1016/j.chemosphere.2023.139250] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/07/2023] [Accepted: 06/15/2023] [Indexed: 06/23/2023]
Abstract
Biochar has great potential to increase the soil nutrient storage capacity. However, with aging, biochar gradually disintegrates and releases fractions with migration potential, resulting in unknown effects on soil nutrient regulation. Based on this problem, we used ultrasound to separate original biochar (TB) into potentially migrating biochar (DB) and residual biochar (RB). The elemental composition and pore characteristics of TB, DB and RB were analyzed. Different fractions of biochar were applied to black soil, and the kinetic model and isothermal adsorption models were used to explore the adsorption characteristics of different treatments. Then, the effects of initial pH and coexisting ions on adsorption were compared. The adsorption mechanism and potential leaching process of phosphorus in soil were investigated. The results showed that RB had higher O and H contents and was less stable than TB, while RB was more aromatic. The phosphorus adsorption capacity of different treatments was SRB (1.3318 mg g-1) > STB (1.2873 mg g-1) > SDB (1.3025 mg g-1) > SCK (1.1905 mg g-1). SRB had optimal phosphorus adsorption performance and storage capacity, with a maximum adsorption capacity of 1.6741 mg g-1 for the Langmuir isotherm, and it also showed excellent applicability in a pH gradient and with coexisting ions. The main adsorption mode of phosphorus by different treatments was monolayer chemisorption, related to electrostatic repulsion and oxygen-containing functional groups. DB was less effective in inhibiting soil phosphorus migration, with the cumulative leaching of SDB reaching 8.99 mg and the percentage of phosphorus in the 0-6 cm soil layer reaching only 15.42%. Overall, the results can help elucidate potential trends in the adsorption performance and migration process of soil phosphorus by biochar, and improve the comprehensive utilization efficiency of biochar.
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Affiliation(s)
- Ping Xue
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China
| | - Renjie Hou
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China
| | - Qiang Fu
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China.
| | - Tianxiao Li
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China; Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China
| | - Jinwu Wang
- School of Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China
| | - Wenqi Zhou
- School of Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China
| | - Weizheng Shen
- School of Electrical and Information, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China
| | - Zhongbin Su
- School of Electrical and Information, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China
| | - Yijia Wang
- Department of Industrial and Manufacturing Systems Engineering, The University of Hong Kong, Hong Kong, 999077, China
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Eltohamy KM, Milham PJ, Gouda M, Menezes-Blackburn D, Khan S, Liu B, Jin J, Ye Y, Liang X. Size and composition of colloidal phosphorus across agricultural soils amended with biochar, manure and biogas slurry. CARBON RESEARCH 2023; 2:16. [DOI: 10.1007/s44246-023-00048-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/24/2023] [Accepted: 03/19/2023] [Indexed: 05/29/2024]
Abstract
AbstractThe long-term application of organic amendments like manure, biochar and biogas slurry can increase phosphorus (P) levels in agricultural soils; however, at present, it's not clear how this affects the P association with different mobile water-dispersible colloidal particles (Pcoll). Thus, this study aimed to assess the effects of the long-term application of different organic amendments on the abundance, size and compositional characteristics of Pcoll. For this purpose, a total of 12 soils amended with the above three organic amendments were sampled from the Zhejiang Province, China, and Pcoll were fractionated into nano-sized (NC; 1–20 nm), fine-sized (FC; 20–220 nm), and medium-sized (MC; 220–450 nm) by a combination of differential centrifugation and ultrafiltration steps. These three Pcoll forms together accounted for 74 ± 14% of the total soil solution dissolved P content, indicating that Pcoll release was a key process in the overland P transport from these soils. Soils treated with biochar showed lower Pcoll contents than those treated with manure or slurry alone; this effect should be further explored in a controlled inductive research approach. Compositional analysis showed that inorganic P was the predominant Pcoll form in the NC (54 ± 20%) and FC (63 ± 28%) fractions, but not in the MC (42 ± 26%) fraction. Among the three fractions, the organic carbon (OC)–calcium (Ca) complex was the major carrier of NC-bound Pcoll, MC-bound Pcoll was better correlated with OC–manganese/iron/aluminium colloids than with OC–Ca colloids, and both of these phenomena co-occurred in the FC fraction. The current study provides novel insights into the impact of various carbon amendments on the propensity for P loss associated with different soil mobile colloidal fractions, and will therefore, inform future agronomic and environmental-related policies and studies.
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