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	干旱区棉花水氮最优调控模型及调控方案
其他题名	The Optimum Regulation Model and Schedule of Water and Nitrogen Regulation to Cotton in Arid Areas
	邓忠; 宗洁; 翟国亮; 李迎; 蔡九茂; 吕谋超; 冯俊杰
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2015
卷号	34 期号:7 页码:40-44
中文摘要	以灌溉定额和施氮量为影响因素,选择了3个灌溉定额和4个施氮量为试验水平,组合形成了12组田间试验方案。根据田间试验数据,建立了棉花产量与灌溉定额、施氮量之间的二次项量化关系式,其反映了水氮对产量的耦合效应,且相关性较高。在此基础上,将灌溉定额和施氮量作为优化变量,以净效益最大为目标函数,以试验因素上、下限为约束条件,构建棉花膜下滴灌水氮优化调控二次规划模型。求解这个二次规划模型,可获得净效益最大的水氮最优调控方案。灌溉水价、肥料价格和籽棉价格分别做为自变量进行了净效益对三者变化的敏感性分析,净效益对籽棉价格的变动最敏感。
英文摘要	Three levels of irrigation quota and four amounts of nitrogen application were assigned to investigate the effects of two way interaction of water and nitrogen application on cotton growth and economic yield.Thus,totally 12treatments were combined in field experiment with three replications in a complete randomized block and split plot design.Through the correlation analysis by Levenberg-Marquardt algorithm using field experiment data such as cotton yield,irrigation quota,and nitrogen application amounts, aparabolic curve was obtained to describe the quadratic relationships among cotton yield,irrigation and nitrogen application,which showed significant fitness for the effects of water and nitrogen coupling on cotton yield.Based on this,two variables of irrigation quota and nitrogen application were optimized and the maximum net economic benefit of cotton was also taken as function objective.Under the constraint conditions of upper and lower limits of experiment factors,aquadratic planning model was established in terms of the optimum water and nitrogen application combination under mulched drip irrigation of cotton.Through this planning model,an optimized and combined water and nitrogen application schedule was concluded to obtain the maximum net economic benefit of cotton.Therefore,an optimum schedule including the best irrigation quota and nitrogen application was constructed for the whole growing season of cotton.The changes of irrigation water price,fertilizer price and seed cotton price were used as the independent variables respectively to do sensitivity analysis on cotton net benefits,and the net benefits to cotton price changes in the most sensitive.
中文关键词	水氮调控 ; 棉花 ; 二次规划模型 ; 优化
英文关键词	water and nitrogen regulation cotton quadratic programming model optimization
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5489727
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232851
作者单位	中国农业科学院农田灌溉研究所, 河南省节水农业重点实验室, 新乡, 河南 453002, 中国
推荐引用方式 GB/T 7714	邓忠,宗洁,翟国亮,等. 干旱区棉花水氮最优调控模型及调控方案[J],2015,34(7):40-44.
APA	邓忠.,宗洁.,翟国亮.,李迎.,蔡九茂.,...&冯俊杰.(2015).干旱区棉花水氮最优调控模型及调控方案.灌溉排水学报,34(7),40-44.
MLA	邓忠,et al."干旱区棉花水氮最优调控模型及调控方案".灌溉排水学报 34.7(2015):40-44.