灌溉排水学报2013，Vol.32Issue(4)：132-134,3.DOI:10.7631/j.issn.1672-3317.2013.04.033
不同灌水下限对棉花产量及水分利用效率的影响
The Effect of Different Thresholds of Soil Moisture on Yield and Water Use Efficiency of Cotton
摘要
Abstract
The relationships between water consumption and yield,marginal yield,water use efficiency were systematically analyzed on the basis of field experiments.The results indicated that:there were parabolic curves between cotton yield,water production efficiency and water consumption of cottons.For cotton yield,the lower limits of optimum soil moisture were 55％FC～60％FC,65％FC～70％FC,75％FC～80％FC,60％FC～65％FC in depth of 60 cm at the stages of seeding,squaring,flowering,boll-opening of cotton plant,respectively.For water use efficiency,the lower limits of optimum soil moisture were 60％FC～65％FC,65％FC～70％FC,80％FC～85％FC,55％FC～60％FC in 60 cm depth at the stages of seeding,squaring,flowering,boll-opening of cotton plant,respectively.关键词
灌水下限/棉花产量/水分利用效率/滴灌Key words
irrigation threshold/ yield of cotton/ water use efficiency/ drip irrigation分类
农业科技引用本文复制引用
李彦,雷晓云,白云岗..不同灌水下限对棉花产量及水分利用效率的影响[J].灌溉排水学报,2013,32(4):132-134,3.基金项目
教育部高等学校博士学科点专项科研基金项目(20116504110001) （20116504110001）
新疆维吾尔自治区水利水电工程重点学科资助项目(XJZDXK-2002-10-05) （XJZDXK-2002-10-05）
