A global assessment of the long-term effects of biochar application on crop yield
The impact of biochar application on crop yield has always been a topic of concern. However, most current research focuses on the short-term effects of biochar on crop growth. Investigating the long-term effects of biochar in increasing crop yields is crucial for food security and sustainable agricu...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Current Research in Environmental Sustainability |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666049024000070 |
| _version_ | 1797269017043402752 |
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| author | Yuhan Jiang Tong Li Xiangrui Xu Jianfei Sun Genxing Pan Kun Cheng |
| author_facet | Yuhan Jiang Tong Li Xiangrui Xu Jianfei Sun Genxing Pan Kun Cheng |
| author_sort | Yuhan Jiang |
| collection | DOAJ |
| description | The impact of biochar application on crop yield has always been a topic of concern. However, most current research focuses on the short-term effects of biochar on crop growth. Investigating the long-term effects of biochar in increasing crop yields is crucial for food security and sustainable agricultural development. To address this issue, this study performed a coupling of meta-analysis and structural equation model (SEM) based on the establishment of a dataset containing 981 sets of observations. The results demonstrated that biochar significantly and durably boosted crop yield, and biochar also has shown an average increase of 36.2% in SOC over a monitoring period exceeding 2 years. Crop yields increased by an average of 16% after biochar application for the long-term scale, although the increase varied across crop types, and biochar application performed better on corn and wheat than paddy rice production. It is noteworthy that the yield still increased by 15% on average after 6 years of biochar application. According to SEM, the yield increase was positively correlated with the application amount of biochar, and the yield increase was higher under low nitrogen (N) input than under high N input. The long-term yield-increasing effect of biochar was more attributable to its enhancement of SOC rather than its effects on soil bulk density and pH. |
| first_indexed | 2024-04-25T01:41:41Z |
| format | Article |
| id | doaj.art-fccef8f9aa134ec6b97b4be97a183aca |
| institution | Directory Open Access Journal |
| issn | 2666-0490 |
| language | English |
| last_indexed | 2024-04-25T01:41:41Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Environmental Sustainability |
| spelling | doaj.art-fccef8f9aa134ec6b97b4be97a183aca2024-03-08T05:19:32ZengElsevierCurrent Research in Environmental Sustainability2666-04902024-01-017100247A global assessment of the long-term effects of biochar application on crop yieldYuhan Jiang0Tong Li1Xiangrui Xu2Jianfei Sun3Genxing Pan4Kun Cheng5Institute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu 210095, ChinaInstitute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu 210095, ChinaInstitute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu 210095, China; Research Institute for Urban Planning and Sustainability, Hangzhou City University, 51 Huzhou Street, Hangzhou 310000, China; Corresponding author at: Institute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agriculture University, 1 Weigang, Nanjing, Jiangsu 210095, China.Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, ChinaInstitute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, 1 Weigang, Nanjing, Jiangsu 210095, ChinaInstitute of Resource, Ecosystem and Environment of Agriculture, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu 210095, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, 1 Weigang, Nanjing, Jiangsu 210095, ChinaThe impact of biochar application on crop yield has always been a topic of concern. However, most current research focuses on the short-term effects of biochar on crop growth. Investigating the long-term effects of biochar in increasing crop yields is crucial for food security and sustainable agricultural development. To address this issue, this study performed a coupling of meta-analysis and structural equation model (SEM) based on the establishment of a dataset containing 981 sets of observations. The results demonstrated that biochar significantly and durably boosted crop yield, and biochar also has shown an average increase of 36.2% in SOC over a monitoring period exceeding 2 years. Crop yields increased by an average of 16% after biochar application for the long-term scale, although the increase varied across crop types, and biochar application performed better on corn and wheat than paddy rice production. It is noteworthy that the yield still increased by 15% on average after 6 years of biochar application. According to SEM, the yield increase was positively correlated with the application amount of biochar, and the yield increase was higher under low nitrogen (N) input than under high N input. The long-term yield-increasing effect of biochar was more attributable to its enhancement of SOC rather than its effects on soil bulk density and pH.http://www.sciencedirect.com/science/article/pii/S2666049024000070BiocharCrop yieldSoil porositymeta-analysisStructural equation model |
| spellingShingle | Yuhan Jiang Tong Li Xiangrui Xu Jianfei Sun Genxing Pan Kun Cheng A global assessment of the long-term effects of biochar application on crop yield Current Research in Environmental Sustainability Biochar Crop yield Soil porosity meta-analysis Structural equation model |
| title | A global assessment of the long-term effects of biochar application on crop yield |
| title_full | A global assessment of the long-term effects of biochar application on crop yield |
| title_fullStr | A global assessment of the long-term effects of biochar application on crop yield |
| title_full_unstemmed | A global assessment of the long-term effects of biochar application on crop yield |
| title_short | A global assessment of the long-term effects of biochar application on crop yield |
| title_sort | global assessment of the long term effects of biochar application on crop yield |
| topic | Biochar Crop yield Soil porosity meta-analysis Structural equation model |
| url | http://www.sciencedirect.com/science/article/pii/S2666049024000070 |
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