Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestration
Crop straw return after harvest is considered an important way to achieve both agronomic and environmental benefits. However, the appropriate amount of straw to substitute for fertilizer remains unclear. A field experiment was performed from 2016 to 2018 to explore the effect of different amounts of...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S209531192200137X |
| _version_ | 1811196890952237056 |
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| author | Jun XIE Blagodatskaya EVGENIA Yu ZHANG Yu WAN Qi-juan HU Cheng-ming ZHANG Jie WANG Yue-qiang ZHANG Xiao-jun SHI |
| author_facet | Jun XIE Blagodatskaya EVGENIA Yu ZHANG Yu WAN Qi-juan HU Cheng-ming ZHANG Jie WANG Yue-qiang ZHANG Xiao-jun SHI |
| author_sort | Jun XIE |
| collection | DOAJ |
| description | Crop straw return after harvest is considered an important way to achieve both agronomic and environmental benefits. However, the appropriate amount of straw to substitute for fertilizer remains unclear. A field experiment was performed from 2016 to 2018 to explore the effect of different amounts of straw to substitute for fertilizer on soil properties, soil organic carbon (SOC) storage, grain yield, yield components, nitrogen (N) use efficiency, phosphorus (P) use efficiency, N surplus, and P surplus after rice harvesting. Relative to mineral fertilization alone, straw substitution at 5 t ha−1 improved the number of spikelets per panicle, effective panicle, seed setting rate, 1000-grain weight, and grain yield, and also increased the aboveground N and P uptake in rice. Straw substitution exceeding 2.5 t ha−1 increased the soil available N, P, and K concentrations as compared with mineral fertilization, and different amounts of straw substitution improved SOC storage compared with mineral fertilization. Furthermore, straw substitution at 5 t ha−1 decreased the N surplus and P surplus by up to 68.3 and 28.9%, respectively, compared to mineral fertilization. Rice aboveground N and P uptake and soil properties together contributed 19.3% to the variation in rice grain yield and yield components. Straw substitution at 5 t ha−1, an optimal fertilization regime, improved soil properties, SOC storage, grain yield, yield components, N use efficiency (NUE), and P use efficiency (PUE) while simultaneously decreasing the risk of environmental contamination. |
| first_indexed | 2024-04-12T01:07:45Z |
| format | Article |
| id | doaj.art-4bd410503d094041b3c050471978b1cf |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-04-12T01:07:45Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-4bd410503d094041b3c050471978b1cf2022-12-22T03:54:13ZengElsevierJournal of Integrative Agriculture2095-31192022-01-01211133453355Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestrationJun XIE0Blagodatskaya EVGENIA1Yu ZHANG2Yu WAN3Qi-juan HU4Cheng-ming ZHANG5Jie WANG6Yue-qiang ZHANG7Xiao-jun SHI8College of Resources and Environment, Southwest University, Chongqing 400716, P.R.ChinaDepartment of Soil Ecology, UFZ–Helmholtz Centre for Environmental Research, Halle 06120, Germany; Agro-Technological Institute, RUDN University, Moscow 117198, RussiaCollege of Resources and Environment, Southwest University, Chongqing 400716, P.R.ChinaSchool of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, P.R.ChinaCollege of Resources and Environment, Southwest University, Chongqing 400716, P.R.ChinaResearch Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, JapanCollege of Resources and Environment, Southwest University, Chongqing 400716, P.R.ChinaCollege of Resources and Environment, Southwest University, Chongqing 400716, P.R.ChinaCollege of Resources and Environment, Southwest University, Chongqing 400716, P.R.China; Correspondence SHI Xiao-jun, Tel: +86-23-68250146Crop straw return after harvest is considered an important way to achieve both agronomic and environmental benefits. However, the appropriate amount of straw to substitute for fertilizer remains unclear. A field experiment was performed from 2016 to 2018 to explore the effect of different amounts of straw to substitute for fertilizer on soil properties, soil organic carbon (SOC) storage, grain yield, yield components, nitrogen (N) use efficiency, phosphorus (P) use efficiency, N surplus, and P surplus after rice harvesting. Relative to mineral fertilization alone, straw substitution at 5 t ha−1 improved the number of spikelets per panicle, effective panicle, seed setting rate, 1000-grain weight, and grain yield, and also increased the aboveground N and P uptake in rice. Straw substitution exceeding 2.5 t ha−1 increased the soil available N, P, and K concentrations as compared with mineral fertilization, and different amounts of straw substitution improved SOC storage compared with mineral fertilization. Furthermore, straw substitution at 5 t ha−1 decreased the N surplus and P surplus by up to 68.3 and 28.9%, respectively, compared to mineral fertilization. Rice aboveground N and P uptake and soil properties together contributed 19.3% to the variation in rice grain yield and yield components. Straw substitution at 5 t ha−1, an optimal fertilization regime, improved soil properties, SOC storage, grain yield, yield components, N use efficiency (NUE), and P use efficiency (PUE) while simultaneously decreasing the risk of environmental contamination.http://www.sciencedirect.com/science/article/pii/S209531192200137XriceSOC storageyield componentsN surplusP surplus |
| spellingShingle | Jun XIE Blagodatskaya EVGENIA Yu ZHANG Yu WAN Qi-juan HU Cheng-ming ZHANG Jie WANG Yue-qiang ZHANG Xiao-jun SHI Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestration Journal of Integrative Agriculture rice SOC storage yield components N surplus P surplus |
| title | Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestration |
| title_full | Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestration |
| title_fullStr | Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestration |
| title_full_unstemmed | Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestration |
| title_short | Substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield, nutrient use efficiency and soil carbon sequestration |
| title_sort | substituting nitrogen and phosphorus fertilizer with optimal amount of crop straw improves rice grain yield nutrient use efficiency and soil carbon sequestration |
| topic | rice SOC storage yield components N surplus P surplus |
| url | http://www.sciencedirect.com/science/article/pii/S209531192200137X |
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