Articles | Volume 8, issue 2
https://doi.org/10.5194/soil-8-645-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-8-645-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Original research article
| 
06 Oct 2022
Original research article |
| 06 Oct 2022
| 06 Oct 2022
Effects of mild alternate wetting and drying irrigation and rice straw application on N2O emissions in rice cultivation
Kaikuo Wu
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
110016, China
Engineering Laboratory for Green Fertilizers, Chinese Academy of
Sciences, Shenyang 110016, China
Wentao Li
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
110016, China
University of Chinese Academy of Sciences, Beijing 100049, China
Zhanbo Wei
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
110016, China
Engineering Laboratory for Green Fertilizers, Chinese Academy of
Sciences, Shenyang 110016, China
Zhi Dong
Institute of Tillage and Cultivation, Liaoning Academy of
Agricultural Sciences, Shenyang 110161, China
Liaoning Key Laboratory of Conservation Tillage in Dry Land, Shenyang
110161, China
Yue Meng
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
110016, China
University of Chinese Academy of Sciences, Beijing 100049, China
Na Lv
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
110016, China
University of Chinese Academy of Sciences, Beijing 100049, China
Lili Zhang
CORRESPONDING AUTHOR
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
110016, China
Engineering Laboratory for Green Fertilizers, Chinese Academy of
Sciences, Shenyang 110016, China
National Engineering Laboratory for Soil Nutrient Management,
Shenyang 110016, China
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Short summary
We explored the effects of mild alternate wetting and drying (AWD) irrigation combined with rice straw return on N2O emissions and rice yield through rice pot experiments. Mild AWD irrigation significantly increased both N2O and yield-scaled N2O emissions. The addition of rice straw under mild AWD irrigation could promote N2O emissions. Mild AWD irrigation could reduce soil-nitrogen uptake by rice when urea was applied. Mild AWD irrigation reduced rice aboveground biomass but not rice yield.
We explored the effects of mild alternate wetting and drying (AWD) irrigation combined with rice...
