干旱区生态环境知识资源中心(Arid): Promoting the production of salinized cotton field by optimizing water and nitrogen use efficiency under drip irrigation

Arid

	Promoting the production of salinized cotton field by optimizing water and nitrogen use efficiency under drip irrigation
	Lin En; Liu Hongguang; Li Xinxin; Li Ling; Sumera Anwar
来源期刊	干旱区科学
ISSN	1674-6767
出版年	2021
卷号	13 期号:7 页码:1674-6767
英文摘要	Cotton is the main economically important crop in Xinjiang, China, but soil salinization and shortage of water and nutrients have restricted its production. A field experiment was carried out in the salinity-affected arid area of Northwest China from 2018 to 2019 to explore the effects of nitrogen and water tegulation on physiological growth, yield, water and nitrogen use efficiencies, and economic benefit of cotton. The salinity levels were 7.7(SL)and 12.5 dS/m(SM). Drip irrigation was used with low, medium and adequate irrigation levels representing 60%, 80% and 100% of cotton crop water demand, respectively, and three nitrogen applications, i.e.,206, 275 and 343 kg/hm~2, accounting for 75%, 100% and 125% of local N application, respectively were used. The multi-objective optimization based on spatial analysis showed that, at SL salinity, water use efficiency(WUE), nitrogen use efficiency(NUE), economic benefit and yield simultaneously reached more than 85% of their maxima at 379.18-398.32 mm irrigation and 256.69-308.87 kg/hm~2. At SM salinity, WUE, yield and economic benefit simultaneously reached more than 85% of their maxima when irrigation was 351.24-376.30 mm and nitrogen application was 230.18-289.89 kg/hm~2. NUE, yield and economic benefit simultaneously reached their maxima at 428.01-337.72 mm irrigation, and nitrogen application range was 222.14-293.93 kg/hm~2. The plants at SL salinity had 21.58%-46.59% higher WUE rates, 14.91%-34.35% higher NUE rates and 20.71%-35.34% higher yields than those at SM salinity. The results are of great importance for the nutrient and water management in cotton field in the arid saline area.
英文关键词	cotton growth multi-objective optimization soil salinization water and nitrogen regulation spatial analysis
类型	Article
语种	英语
国家	中国
收录类别	CSCD
WOS类目	History
CSCD记录号	CSCD:7025981
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365057
作者单位	Lin En, College of Water Conservancy & Architectural Engineering, Shihezi University;;Xinjiang Production & Construction Group Key Laboratory of Modern Water-Saving Irrigation, ;;Xinjiang Production & Construction Group Key Laboratory of Modern Water-Saving Irrigation, Shihezi;;Shihezi, ;; 832000;;832000.; Liu Hongguang, College of Water Conservancy & Architectural Engineering, Shihezi University;;Xinjiang Production & Construction Group Key Laboratory of Modern Water-Saving Irrigation, ;;Xinjiang Production & Construction Group Key Laboratory of Modern Water-Saving Irrigation, Shihezi;;Shihezi, ;; 832000;;832000.; Li Xinxin, College of Water Conservancy & Architectural Engineering, Shihezi University;;Xinjiang Production & Construction Group Key Laboratory of Modern Water-Saving Irrigation, ;;Xinjiang Production & Construction Group Key Laboratory of Modern Water-Saving Irrigation, Shihezi;;Shihezi, ;; 832000;;832000.; Li Ling, College of Water Conservancy & Architectural Engineering, Shihezi University;...
推荐引用方式 GB/T 7714	Lin En,Liu Hongguang,Li Xinxin,et al. Promoting the production of salinized cotton field by optimizing water and nitrogen use efficiency under drip irrigation[J],2021,13(7):1674-6767.
APA	Lin En,Liu Hongguang,Li Xinxin,Li Ling,&Sumera Anwar.(2021).Promoting the production of salinized cotton field by optimizing water and nitrogen use efficiency under drip irrigation.干旱区科学,13(7),1674-6767.
MLA	Lin En,et al."Promoting the production of salinized cotton field by optimizing water and nitrogen use efficiency under drip irrigation".干旱区科学 13.7(2021):1674-6767.