Conservation tillage and optimized fertilization reduce winter runoff losses of nitrogen and phosphorus from farmland in the Chaohu Lake region, China
文献类型: 外文期刊
第一作者: Wang, Jing
作者: Wang, Jing;Lu, Guoan;Ding, Shuwen;Wang, Jing;Guo, Xisheng;Wang, Yunqing;Wang, Daozhong;Wang, Jing;Guo, Xisheng;Wang, Yunqing;Wang, Daozhong
作者机构:
关键词: Nitrogen;Phosphorus;Runoff loss;Conservation tillage;Optimized fertilization;Winter crop
期刊名称:NUTRIENT CYCLING IN AGROECOSYSTEMS ( 影响因子:3.27; 五年影响因子:3.767 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: In order to test the efficacy of conservation tillage and optimized fertilization on reducing N and P runoff losses, a 4-year (2007-2011) runoff plot experiment was conducted in the Chaohu Lake region, East China. There were four treatments including: (1) conventional tillage (CT, basal fertilization without mulch), (2) conventional tillage with straw mulching (CTS), (3) optimized fertilization (OPF, split applications) and (4) no-tillage with straw mulching plus optimized fertilization (NTS + OPF). Results showed that CTS and NTS + OPF exhibited significant reduction of seasonal runoff and soil losses compared with CT (P < 0.05). OPF decreased runoff by 6-10 and soil loss by 9-27 % in the various years, but differences were not always statistically significant. Interestingly, winter wheat and rapeseed yields were on average higher in the conservation tillage and optimized fertilization treatment than in the CT treatment. Compared with CT, CTS reduced N losses by 14-25 %, OPF by 12-21 % and NTS + OPF 20-28 %. Similarly, CTS reduced P losses by 20-32 %, OPF by 11-21 % and NTS + OPF by 23-30 %. NTS + OPF was the most effective treatment for reducing nutrient losses. The reduction of runoff volume was mainly responsible for the decreased nutrient losses. Our findings indicates that conservation tillage and optimized fertilization may reduce N and P losses via runoff while maintaining or enhancing crop yields during the winter-crop growing seasons in the Chaohu Lake region.
分类号: TQ44
- 相关文献
作者其他论文 更多>>
-
Environmental risk thresholds and prediction models of Cd in Chinese agricultural soils
作者:Yu, Lei;Chen, Shibao;Wang, Jing;Qin, Luyao;Sun, Xiaoyi;Wang, Meng;Zhang, Xing;Zhang, Xing;Chen, Shibao;Wang, Meng;Zhang, Xing
关键词:Soil Cd; Soil environmental risk threshold; Derivation methodology; Hormesis; SSD; Hc3
-
Mixed sowing of Feed rape and Vicia villosa can substitute nitrogen fertilizer to improve soil multifunctionality in the Hetao irrigation District
作者:Yu, Ru;Zhang, Hongyuan;Chang, Fangdi;Song, Jiashen;Wang, Jing;Wang, Xiquan;Li, Yuyi;Kan, Zhengrong;Zhao, Na;Li, Xiaohong;Ma, Jun
关键词:Green manure types; Nitrogen fertilizer; Soil multifunctionality; Yield
-
Facile preparation of biomimetic mineralized COFs based on magnetic silk fibroin and its effective extraction of sulforaphane from cruciferous vegetables
作者:Liu, Guangyang;Zhang, Xuan;Li, Lingyun;Chen, Ge;Lv, Jun;Xu, Xiaomin;Huang, Xiaodong;Xu, Donghui;Liu, Guangyang;Zhang, Xuan;Wang, Jian;Cao, Jiayong;Yin, Chen;Liu, Yuan;Zhang, Xuan;Xu, Donghui;Wang, Jing
关键词:Sulforaphane; Biomimetic mineralization; Silk fibroin; Covalent organic framework; Magnetic solid-phase extraction
-
Identification and functional prediction of CircRNAs of developing seeds in high oleic acid sunflower (Helianthus annuus L.)
作者:Zhou, Fei;Huang, Xutang;Zhou, Fei;Liu, Yan;Wang, Wenjun;Wu, Liren;Ma, Jun;Zhang, Shuquan;Wang, Jing;Yuan, Hongmei;Huang, Xutang;Feng, Fujuan
关键词:Sunflower; CircRNAs; Host genes; Seed development; Oil biosynthesis; High oleic acid
-
Yeast cell-wall polysaccharides improve immunity and attenuate inflammatory response via modulating gut microbiota in LPS-challenged laying hens
作者:Zhou, Jianmin;Fu, Yu;Qi, Guanghai;Zhang, Haijun;Wang, Jing;Wu, Shugeng;Dai, Jinjun;Wang, Jing
关键词:Yeast cell wall polysaccharides; Immunity; Inflammatory response; Gut microbiota; Laying hen
-
Ecological risk threshold for Pb in Chinese soils
作者:Qin, Luyao;Sun, Xiaoyi;Yu, Lei;Wang, Jing;Wang, Meng;Chen, Shibao;Modabberi, Soroush
关键词:Lead; Hormesis; Toxicity threshold; Species sensitivity distribution (SSD); Hazard concentration for 5% of species(HC5)
-
Characterization and Transcriptome Analysis of Maize Small-Kernel Mutant smk7a in Different Development Stages
作者:Wang, Jing;Wang, Hongwu;Peng, Yunling;Wang, Jing;Wang, Hongwu;Li, Kun;Liu, Xiaogang;Cao, Xiaoxiong;Zhou, Yuqiang;Huang, Changling;Hu, Xiaojiao;Wang, Jing;Wang, Hongwu;Peng, Yunling
关键词:maize; smk7a mutant; IAA; starch synthesis; transcriptome