Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon pool
The traditional rice fertilization method of spreading increases yield at the cost of reducing nitrogen uptake efficiency and accelerating soil organic carbon loss. Given the rapid changes in rice production within Southwest China's crop rotation system, integrating short-term straw return with...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-08-01
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| Series: | Journal of Agriculture and Food Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666154325005216 |
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| author | Binbin Liu Jinyue Zhang Chuanhai Shu Qingyue Cheng Qiqi Chen Hongkun Xie Yuanqing Shi Xiana Tie Jiayue Wang Ning Liu Zongkui Chen Na Li Yongjian Sun Jun Ma Xiaoli Zhang Zhiyuan Yang |
| author_facet | Binbin Liu Jinyue Zhang Chuanhai Shu Qingyue Cheng Qiqi Chen Hongkun Xie Yuanqing Shi Xiana Tie Jiayue Wang Ning Liu Zongkui Chen Na Li Yongjian Sun Jun Ma Xiaoli Zhang Zhiyuan Yang |
| author_sort | Binbin Liu |
| collection | DOAJ |
| description | The traditional rice fertilization method of spreading increases yield at the cost of reducing nitrogen uptake efficiency and accelerating soil organic carbon loss. Given the rapid changes in rice production within Southwest China's crop rotation system, integrating short-term straw return with optimized water-nitrogen management could improve resource utilization and promote green agriculture. We examined the interactions between straw return and water-nitrogen coupling by analyzing soil carbon pools and yield formation. The results revealed that straw return and integrated water-nitrogen management regulated the soil-crop system synergistically. Straw return improved total organic carbon, dissolved organic carbon, and carbon pool indices, fostering a soil environment that supports the dynamic carbon balance. The optimized carbon pool structure established the foundation for integrated water-nitrogen management. With straw return, water-fertilizer coupling with 20 % nitrogen reduction (1) promoted the targeted transformation of active organic carbon components and increased the carbon pool activity index; (2) enhanced the accumulation of post-flowering assimilates and promoted seed filling; (3) constructed a new nitrogen utilization pathway and increased the agronomic and physiological nitrogen use efficiency by 22.22 %–22.44 % and 3.11 %–4.63 %, respectively. Finally, the yield under this treatment reached the same as that under conventional nitrogen application. |
| format | Article |
| id | doaj-art-545f8e8eb6fc43fb8bcc9aa415d34d07 |
| institution | Matheson Library |
| issn | 2666-1543 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Agriculture and Food Research |
| spelling | doaj-art-545f8e8eb6fc43fb8bcc9aa415d34d072025-07-26T05:24:26ZengElsevierJournal of Agriculture and Food Research2666-15432025-08-0122102150Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon poolBinbin Liu0Jinyue Zhang1Chuanhai Shu2Qingyue Cheng3Qiqi Chen4Hongkun Xie5Yuanqing Shi6Xiana Tie7Jiayue Wang8Ning Liu9Zongkui Chen10Na Li11Yongjian Sun12Jun Ma13Xiaoli Zhang14Zhiyuan Yang15Sichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaSichuan Agricultural University, Chengdu 611130, ChinaChengdu Academic of Agriculture and Forestry Sciences, Chengdu 611130, China; Corresponding author.Sichuan Agricultural University, Chengdu 611130, China; Corresponding author.The traditional rice fertilization method of spreading increases yield at the cost of reducing nitrogen uptake efficiency and accelerating soil organic carbon loss. Given the rapid changes in rice production within Southwest China's crop rotation system, integrating short-term straw return with optimized water-nitrogen management could improve resource utilization and promote green agriculture. We examined the interactions between straw return and water-nitrogen coupling by analyzing soil carbon pools and yield formation. The results revealed that straw return and integrated water-nitrogen management regulated the soil-crop system synergistically. Straw return improved total organic carbon, dissolved organic carbon, and carbon pool indices, fostering a soil environment that supports the dynamic carbon balance. The optimized carbon pool structure established the foundation for integrated water-nitrogen management. With straw return, water-fertilizer coupling with 20 % nitrogen reduction (1) promoted the targeted transformation of active organic carbon components and increased the carbon pool activity index; (2) enhanced the accumulation of post-flowering assimilates and promoted seed filling; (3) constructed a new nitrogen utilization pathway and increased the agronomic and physiological nitrogen use efficiency by 22.22 %–22.44 % and 3.11 %–4.63 %, respectively. Finally, the yield under this treatment reached the same as that under conventional nitrogen application.http://www.sciencedirect.com/science/article/pii/S2666154325005216Nitrogen-water integrationStraw returningRiceNitrogen recoverySoil carbon pool |
| spellingShingle | Binbin Liu Jinyue Zhang Chuanhai Shu Qingyue Cheng Qiqi Chen Hongkun Xie Yuanqing Shi Xiana Tie Jiayue Wang Ning Liu Zongkui Chen Na Li Yongjian Sun Jun Ma Xiaoli Zhang Zhiyuan Yang Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon pool Journal of Agriculture and Food Research Nitrogen-water integration Straw returning Rice Nitrogen recovery Soil carbon pool |
| title | Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon pool |
| title_full | Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon pool |
| title_fullStr | Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon pool |
| title_full_unstemmed | Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon pool |
| title_short | Coupling of straw returning and nitrogen-water integration on rice nitrogen recovery and soil carbon pool |
| title_sort | coupling of straw returning and nitrogen water integration on rice nitrogen recovery and soil carbon pool |
| topic | Nitrogen-water integration Straw returning Rice Nitrogen recovery Soil carbon pool |
| url | http://www.sciencedirect.com/science/article/pii/S2666154325005216 |
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