Long-term straw returning improve soil K balance and potassium supplying ability under rice and wheat cultivation
文献类型: 外文期刊
作者: Zhang, Zhiyi 1 ; Liu, Dongbi 1 ; Wu, Maoqian 1 ; Xia, Ying 1 ; Zhang, Fulin 1 ; Fan, Xianpeng 1 ;
作者机构: 1.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer,Minist Agr &, Natl Stn Qianjiang Agroenvironm,QianJiang Sci Obs, Hubei Engn Res Ctr Agr Nonpoint Source Pollut Con, Wuhan 430064, Peoples R China
期刊名称:SCIENTIFIC REPORTS ( 影响因子:4.38; 五年影响因子:5.134 )
ISSN: 2045-2322
年卷期: 2021 年 11 卷 1 期
页码:
收录情况: SCI
摘要: The aims of the present study were to provide scientific bases for rational use of crop straw to substitute chemical potassium (K) input. The effects of potassium fertilization and straw incorporation on soil K balance and K supplying in a long-term (14 years) field experiment. Five treatments were examined: (1) no fertilization (CK); (2) mineral fertilizing (NPK); (3) straw 6000 kg h m(-2) (S); (4) NPK with straw 3000 kg h m(-2) (NPK1/2S); and (5) NPK with straw 6000 kg h m(-2) (NPKS). K composition, K balance and quantity-intensity (Q/I) relationship were studied. Under no fertilization or low straw returned conditions, soil K was unbalanced and deficienct seriously. Straw return at 6000 kg h m(-2) per season with fertilization improved the soil potassium supply and K balance. Long-term K surplus (4 or 5 years), compared with NPK, the NPKS significantly increased non-special K adsorption (K-nsa) and non-exchangeable K (K-ne) by 5.7-11.2 mg kg(-1) and 65.7-128.1 mg kg(-1), respectively. Q/I relationship showed cropping without straw K or without fertilizer K resulted in lower quantity (nonspecifically and specifically held K i.e. - increment K-0 and K-x) and intensity (equilibrium activity ratio i.e. CR0K) of K in tested soils. K-fertilization with straw maintain higher exchangeable K (EK0) and a higher difference between EK0 and minimum exchangeable K(EKmin), and would help to prevent depletion in non-exchangeable pool of soil K under intensive cropping. Additionally, The straw return mainly decreased potential buffering capacity for exchangeable pool (PBCnK), 43.92-48.22% of added K in soil might be converted to exchangeable pool while it was 25.67-29.19% be converted to non-exchangeable pool. The contribution of exchangeable K towards plant K uptake would be higher in the soil with straw than the soil without straw and the non-exchangeable K would be the long-term fixed K as a supplement to the potassium pool. K fertilizer with 6000 kg h m(-2) straw return in each crop season increased soil available K and slowly available K. The findings underlined importance of the straw return and contribution for sustain K supplying ability of soils.
- 相关文献
作者其他论文 更多>>
-
Potential to mitigate nitrogen emissions from paddy runoff: A microbiological perspective
作者:Duan, He;Wang, Haodong;Li, Sisi;Shen, Wangzheng;Zhuang, Yanhua;Zhang, Liang;Duan, He;Li, Sisi;Shen, Wangzheng;Zhuang, Yanhua;Zhang, Liang;Wang, Haodong;Zhang, Fulin;Li, Xudong;Zhai, Limei;Liu, Hongbin
关键词:Non-point source pollution; Greenhouse gas emission; Microorganism; Functional gene; Metagenomics
-
Returned straw reduces nitrogen runoff loss by influencing nitrification process through modulating soil C:N of different paddy systems
作者:Wang, Shaopeng;Zhai, Limei;Liu, Hongbin;Guo, Shufang;Zhang, Fulin;Hua, Lingling
关键词:Rice; Nitrogen runoff losses; Straw return; Nitrogen cycle bacteria; Soil C:N; Non-point source pollution
-
Enhancing rice production sustainability and resilience via reactivating small water bodies for irrigation and drainage
作者:Li, Sisi;Zhuang, Yanhua;Ruan, Shuhe;Shen, Wangzheng;Mi, Menghan;Du, Yun;Zhang, Liang;Li, Sisi;Zhuang, Yanhua;Ruan, Shuhe;Shen, Wangzheng;Mi, Menghan;Du, Yun;Zhang, Liang;Li, Sisi;Zhuang, Yanhua;Ruan, Shuhe;Shen, Wangzheng;Du, Yun;Zhang, Liang;Liu, Hongbin;Zhai, Limei;Wang, Zhen;Wang, Zhen;Zhang, Fulin;Fan, Xianpeng;Lv, Mingquan;Wu, Shengjun;Niu, Shiwei;Wang, Na;Chen, Jingrui;Xu, Changxu
关键词:
-
Rice-crayfish pattern in irrigation-drainage unit increased N runoff losses and facilitated N enrichment in ditches
作者:Du, Feile;Zhai, Limei;Wang, Shaopeng;Liu, Yilin;Liu, Hongbin;Du, Feile;Zhang, Fulin;Fan, Xianpeng;Hua, Lingling
关键词:Nitrogen; Rice-crayfish rotation; Irrigation-drainage unit; Nonpoint source pollution
-
14 year applications of chemical fertilizers and crop straw effects on soil labile organic carbon fractions, enzyme activities and microbial community in rice-wheat rotation of middle China
作者:Liu, Bo;Yang, Li;Chen, Yunfeng;Fan, Xianpeng;Xia, Xiange;Xia, Hao;Jiang, Cuncang;Jiang, Cuncang;Riaz, Muhammad
关键词:Straw; Labile organic carbon; Soil enzyme activity; Soil microorganisms; Long-term fertilization
-
Comprehensive assessment of integrated rice-crayfish farming system as a new paradigm to air-water-food nexus sustainability
作者:Sun, Qiaoyu;Liu, Yilin;Pan, Junting;Liu, Hongbin;Khoshnevisan, Benyamin;Zhu, Jianqiang;Zhang, Dingyue;Wang, Weiwei;Fan, Xianpeng;Wu, Maoqian;Zhang, Dingyue;Sun, Qiaoyu;Liu, Yilin;Pan, Junting;Liu, Hongbin;Liu, Hongbin
关键词:Rice; Crayfish; Paddy fields; Sustainable agriculture
-
Joint analytical hierarchy and metaheuristic optimization as a framework to mitigate fertilizer-based pollution
作者:Zhang, Fulin;Fan, Xianpeng;Xia, Ying;Wu, Maoqian;Liu, Dongbi;Zhang, Fulin;Fan, Xianpeng;Xia, Ying;Wu, Maoqian;Liu, Dongbi;Sun, Qiaoyu;Khoshnevisan, Benyamin;Zhai, Limei;Pan, Junting;Liu, Hongbin;Mehrabadi, Mohamad;Rafiee, Shahin;Zhang, Yitao
关键词:Nitrogen fertilizer; Optimization; Rice; Wheat; Sustainable cropping system