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Plough Tillage Maintains High Rice Yield and Lowers Greenhouse Gas Emissions under Straw Incorporation in Three Rice-Based Cropping Systems

文献类型: 外文期刊

作者: Danso, Frederick 1 ; Bankole, Oluwaseyi Oyewale 1 ; Zhang, Nan 1 ; Dong, Wenjun 2 ; Zhang, Kun 3 ; Lu, Changying 4 ; Shang, Ziyin 1 ; Li, Gexing 5 ; Deng, Aixing 1 ; Song, Zhenwei 1 ; Zheng, Chengyan 1 ; Zhang, Jun 1 ; Zhang, Weijian 1 ;

作者机构: 1.Chinese Acad Agr Sci, Inst Crop Sci, Key Lab Crop Physiol & Ecol, Beijing 100081, Peoples R China

2.Heilongjiang Acad Agr Sci, Cultivat & Farming Res Inst, Harbin 150086, Peoples R China

3.Jiangxi Inst Red Soil, Natl Engn & Technol Res Ctr Red Soil Improvement, Nanchang 331717, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Agr Sci Taihu Lake Dist, Suzhou 215100, Peoples R China

5.Henan Agr Univ, Coll Agr, Zhengzhou 450046, Peoples R China

关键词: rice; soil tillage; crop straw; greenhouse gas; methane

期刊名称:AGRONOMY-BASEL ( 影响因子:3.7; 五年影响因子:4.0 )

ISSN:

年卷期: 2023 年 13 卷 3 期

页码:

收录情况: SCI

摘要: Straw incorporation promotes rice productivity and soil fertility. However, the effects of tillage practice with straw on GHG emissions in paddy fields are not well documented. Under three rice-based cropping systems of China (single rice, double rice and rice-wheat cropping systems), we investigated rice yield, CH4, N2O, area and yield-scaled emissions arising from different straw-incorporated tillage patterns. Tillage with straw affected rice yield by -6.8 similar to 3.2%, -9.1 similar to 9.0% and -9.8 similar to 2.1% in single rice, rice-wheat and double rice cropping systems respectively. Straw impacted CH4 emission but tillage influenced its impact irrespective of the rice cropping system. The highest CH4 emissions occurred in RedT + S, RoT + S and RoT + S under single rice, rice-wheat and double rice cropping systems respectively. Cumulative CH4 emission of PT + S decreased by 46.8% (p < 0.05) compared to RedT + S in the single cropping system, while under rice-wheat and double rice cropping systems, cumulative CH4 emission of PT + S decreased by 19.0% (p < 0.05) and 13.2% (p > 0.05) respectively compared with RoT + S. Lower methanogenic abundance of PT + S translated into the lowest cumulative CH4, area and yield scaled emissions in single rice and double rice cropping systems. To maintain high rice yield and reduce GHG emissions from straw incorporation, PT + S is recommended for a rice-based cropping system.

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