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Articles | Volume 12, issue 2
Articles | Volume 12, issue 2
https://doi.org/10.5194/soil-12-871-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-12-871-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 2
Original research article
 | 
14 Sep 2026
Original research article |  | 14 Sep 2026

Mechanisms of enhancing soil fertility without obviously elevating global warming potential under an optimal rice straw incorporation rate in a paddy soil

Mengxue Zhang, Rujia Liao, Wenzhao Zhang, Cheng Fang, Simon Guerrero-Cruz, András Táncsics, Baoli Zhu, Wenxue Wei, and Rong Sheng

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Short summary
To return straw or not to return? We demonstrate that rice straw incorporation at half of the harvest enhanced soil fertility without additional global warming potential (GWP). This minimal increase in GWP relied on the highest nosZII abundance and the lowest nirS/nosZII ratio, and the CH4 production being just above the soil CH4 holding capacity. We offer a viable strategy to scientifically manage rice straw for climate-smart sustainable rice agriculture.
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