Co-incorporation of rice straw and leguminous green manure can increase soil available nitrogen (N) and reduce carbon and N losses: An incubation study
文献类型： 外文期刊
作者： Zhou, Guopeng 1 ; Cao, Weidong 1 ; Bai, Jinshun 1 ; Xu, Changxu 4 ; Zeng, Naohua 1 ; Gao, Songjuan 1 ; Rees, Robert M. 5 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Plant Nutr & Fertilizer, Minist Agr, Beijing 100081, Peoples R China
2.Chinese Acad Agr Sci, Grad Sch, Beijing 100081, Peoples R China
3.Qinghai Univ, Qinghai Acad Agr & Forestry Sci, Soil & Fertilizer Inst, Xining 810016, Peoples R China
4.Jiangxi Acad Agr Sci, Inst Soil Fertilizer & Resource Environm, Nanchang 330200, Jiangxi, Peoples R China
5.Scotlands Rural Coll SRUC, Edinburgh EH9 3JG, Midlothian, Scotland
6.Texas A&M AgriLife Res Ctr, Beaumont, TX 77713 USA
关键词： active C and N pools; C/N ratio; global warming potential; greenhouse gas; plant residues; straw returning
期刊名称：PEDOSPHERE （ 影响因子：3.911； 五年影响因子：4.814 ）
ISSN： 1002-0160
年卷期： 2020 年 30 卷 5 期
页码：
收录情况： SCI
摘要： Returning rice straw and leguminous green manure alone or in combination to soil is effective in improving soil fertility in South China. Despite the popularity of this practice, our understanding of the underlying processes for straw and manure combined application is relatively poor. In this study, rice straw (carbon (C)/nitrogen (N) ratio of 63), green manure (hairy vetch, C/N ratio of 14), and their mixtures (C/N ratio of 25 and 35) were added into a paddy soil, and their effects on soil N availability and C or N loss under waterlogged conditions were evaluated in a 100-d incubation experiment. All plant residue treatments significantly enhanced CO2 and CH4 emissions, but decreased N2O emission. Dissolved organic C (DOC) and N (DON) and microbial biomass C in soil and water-soluble organic C and N and mineral N in the upper aqueous layer above soil were also enhanced by all the plant residue treatments except the rice straw treatment, and soil microbial biomass N and mineral N were lower in the rice straw treatment than in the other treatments. Changes in plant residue C/N ratio, DOC/DON ratio, and cellulose content significantly affected greenhouse gas emissions and active C and N concentrations in soil. Additionally, the treatment with green manure alone yielded the largest C and N losses, and incorporation of the plant residue mixture with a C/N ratio of 35 caused the largest net global warming potential (nGWP) among the amended treatments. In conclusion, the co-incorporation of rice straw and green manure can alleviate the limitation resulting from only applying rice straw (N immobilization) or the sole application of leguminous green manure (high C and N losses), and the residue mixture with a C/N ratio of 25 is a better option because of lower nGWP.
- 相关文献
作者其他论文 更多>>
-
Sustained Green Manure-Rice Rotations Can Mitigate Methane Emissions by Enhancing Microbial Methane Oxidation in Southern China
作者：Liang, Hao;Fu, Jin;Feng, Jiguang;Zhu, Qiuan;Zhou, Feng;Zhou, Guopeng;Zhou, Guopeng;Cao, Weidong;Smith, Pete;Gabrielle, Benoit;Li, Tao;Schmidt, Susanne;Xu, Changxu;Liu, Jia;Nie, Jun;Wu, Ji;Geng, Mingjian;Wang, Fei;Liang, Yuting;Zhou, Feng
关键词：paddy soil; methane; green manure; rotation year; process-based modeling
-
Co-incorporation of rice straw and milk vetch (Astragalus sinicus L.) improves soil fertility and rice yield in two typical paddy soils
作者：Wan, Li;Chen, Xiaofen;Yang, Shuang;Qin, Wenjing;Liu, Jia;Zhou, Guopeng;Xia, Longlong;Kang, Yuntao
关键词：microbial biomass; milk vetch; rice straw; rice yield; soil enzyme activities; soil fertility
-
Ethylene stimulates methane oxidation and inhibits methane production in green manure-rice systems
作者：Sun, Jinxin;Ma, Zhengbo;Liang, Ting;Chang, Danna;Cao, Weidong;Sun, Jinxin;Zou, Chunqin;Zhou, Guopeng;Liu, Rui;Liu, Han;Liu, Jia
关键词：Green manure; Ethylene; Rice; Aerenchyma; Ch4
-
Green manuring combined with optimal water management achieves a triple-win for paddy soil quality, rice productivity, and environmental benefits
作者：Zhou, Guopeng;Ma, Zhengbo;Chang, Danna;Sun, Jinxin;Cao, Weidong;Ma, Zhengbo;Chadwick, David R.;Jones, Davey L.;Han, Shang;Wu, Ji;Liu, Han;Liu, Jia;Zhou, Guodong;Ma, Qingxu
关键词：Green manure; Delayed flooding; Soil quality index; Environment footprint; Net ecosystem economic budget
-
Green Manure Coupled With Straw Returning Increases Soil Organic Carbon via Decreased Priming Effect and Enhanced Microbial Carbon Pump
作者：Zhou, Guopeng;Li, Guilong;Liu, Jia;Liang, Hai;Liu, Rui;Ma, Zhengbo;Chang, Danna;Cao, Weidong;Gao, Songjuan;Chadwick, David R.;Jones, Davey L.
关键词：biomarkers; microbial carbon pump; priming effect; soil carbon components; stable isotope probing
-
Characteristics of the microbial communities regulate soil multi-functionality under different cover crop amendments in Ultisol
作者：Li, Guilong;Chen, Xiaofen;Qin, Wenjing;Chen, Jingrui;Leng, Ke;Sun, Luyuan;Xu, Changxu;Liu, Jia;Li, Guilong;Chen, Xiaofen;Qin, Wenjing;Chen, Jingrui;Leng, Ke;Sun, Luyuan;Xu, Changxu;Liu, Jia;Liu, Ming;Wu, Meng;Fan, Jianbo
关键词：cover crops; soil multifunctionality; microbial richness; network complexity; ecological cluster
-
Milk vetch returning combined with lime materials alleviates soil cadmium contamination and improves rice quality in soil-rice system
作者：Wang, Yikun;Wang, Kai;Liang, Ting;Wang, Tianshu;Cao, Weidong;Fan, Hongli;Liu, Jia;Chen, Xiaofen;Xu, Changxu
关键词：Milk vetch returning; Lime materials; Cadmium; Iron oxides and plaque; Mineral elements and amino acids
