河南农业科学Issue(5)：67-71,5.
水肥运筹对冬小麦光合特性、产量及水分利用的影响
Effects of Water and Fertilizer Application Strategies on Winter Wheat Photosynthetic Characteristics,Yield and Water Use
摘要
Abstract
To explore the effects of water and fertilizer application on yield and water use of winter wheat, a field experiment was conducted to investigate the effects of different nitrogen topdressing proportions ( N0:base fertilizer 100%,N1:base fertilizer 40% +jointing stage 30% +filling stage 30%,N2:base fer-tilizer 60% +jointing stage 20% +filling stage 20%,N3:base fertilizer 70% +jointing stage 30%) and irrigation amount ( W0:0 m3/ha once,W1:225 m3/ha once,W2:450 m3/ha once) on soil moisture,pho-tosynthetic characteristics,yield and water use of winter wheat. The results showed that different nitrogen topdressing proportions and irrigation amount improved wheat photosynthetic characteristics, promoted growth,and increased yield and water use of wheat. At the filling stage wheat water requirement was rela-tively strong for wheat,profile soil moisture among treatments was most significantly different,the soil wa-ter content of W2N3 treatment was the highest. In all treatments,the net photosynthetic rate of W2N2 treatment was the highest, the leaf water use efficiency of W1N2 treatment and W2N2 treatment were higher than the other treatments,the yield and water production efficiency of W2N2 treatment were the highest,which increased by 33. 5% and 23. 8% respectively compared with the control(W0N0). Overall, W2N2 treatment was the best.关键词
小麦/灌水量/氮肥/光合特性/产量/水分利用Key words
wheat/irrigation amount/nitrogen fertilizer/photosynthetic characteristics/yield/water use分类
农业科技引用本文复制引用
杨永辉,武继承,何方,潘晓莹,张洁梅,王越,韩伟锋..水肥运筹对冬小麦光合特性、产量及水分利用的影响[J].河南农业科学,2015,(5):67-71,5.基金项目
国家863计划项目(2013AA102904) （2013AA102904）
公益性行业(农业)科研专项经费项目(201203077) （农业）
国家科技支撑计划项目(2013BAD07B07) （2013BAD07B07）
国家自然科学基金(U1404404) （U1404404）
河南省农业科学院自主创新专项基金 （）
