Improved water and rice residue managements reduce greenhouse gas emissions from paddy soil and increase rice yields

Author(s):  
Dao Trong Hung ◽  
Callum C. Banfield ◽  
Maxim Dorodnikov ◽  
Daniela Sauer
Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 717
Author(s):  
Qiaoying Ma ◽  
Jiwei Li ◽  
Muhammad Aamer ◽  
Guoqin Huang

Paddy soil is an important emission source of agricultural greenhouse gases. The excessive application of chemical fertilizer to paddy soil is one of the important reasons for high greenhouse gas emissions. Emissions can be reduced through optimized agricultural management measures. The incorporation of Chinese milk vetch (CMV) and rice straw in the field to replace some of the chemical fertilizer can reduce the emissions of greenhouse gases, but the relationship between these emissions and soil properties after the incorporation of CMV and rice straw is unclear. Through the continuous determination of greenhouse gases and the physical and chemical properties of soil, it was found that the addition of CMV and straw could increase the emissions of methane (CH4) and carbon dioxide (CO2), but nitrous oxide (N2O) emissions were lower. The effect of the combined incorporating of CMV and rice straw on soil properties was more significant than CMV alone. It was also found that CH4 and CO2 emissions were positively correlated with microbial biomass carbon and nitrogen, pH, and soil catalase and β-xylosidase activities. In practice, we can reduce greenhouse gas emissions by water and fertilizer management.


2019 ◽  
Vol 26 (32) ◽  
pp. 33416-33426
Author(s):  
Xianxian Zhang ◽  
Huifeng Sun ◽  
Junli Wang ◽  
Jining Zhang ◽  
Guolan Liu ◽  
...  

2018 ◽  
Vol 19 (4) ◽  
pp. 1756-1766 ◽  
Author(s):  
Jiangmin Zhou ◽  
Hualin Chen ◽  
Yueliang Tao ◽  
Ronald W. Thring ◽  
Jianliang Mao

2018 ◽  
Vol 85 ◽  
pp. 23-29 ◽  
Author(s):  
Yan Xiao ◽  
Fengge Zhang ◽  
Yang Li ◽  
Tong Li ◽  
Yeye Che ◽  
...  

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