安徽农业科学2017，Vol.45Issue(10)：113-114,161,3.
基于土壤水势的棉花滴灌预警模型研究
Study on Warning Model of Cotton Drip Irrigation Based on Soil Water Potential
摘要
Abstract
[Objective] To study the relationship between soil water potential changes of cotton under mulched dip irrigation in different soil depth and water potential of cotton function leaf,and realize the real-time monitoring of soil moisture.[Method] Soil water potential was measured using water potential instrument,and early warning model of cotton drip irrigation based on soil water potential was established.[Result] Change amplitude of soil water potential (SWP) was maximum in soil layer of 20-40 cm,and the relationship between soil water potential (x) and leaf water potential of function leaves (y) in the morning:equation in 0-20 cm soil layer for y=0.000 7x2-0.028 3x-1.394 3 (R2=0.964 3),equation in 20-40 cm soil layer for y=0.000 8x2-0.046 6x-1.809 3(R2=0.948 2).Through the field validation prediction accuracy was higher (R2=0.945 7).[Conclusion] The study can provide theoretical reference for filling water and real-time monitoring and early warning.关键词
滴灌/棉花/水势/预警/模型Key words
Drip irrigation/Cotton/Water potential/Warning/Model分类
农业科技引用本文复制引用
周莉薇,张强,张国龙,张泽..基于土壤水势的棉花滴灌预警模型研究[J].安徽农业科学,2017,45(10):113-114,161,3.基金项目
八师石河子市科技计划项目(2014NY16). （2014NY16）
