干旱地区农业研究2017，Vol.35Issue(1)：171-177,7.DOI:10.7606/j.issn.1000-7601.2017.01.26
生育期水分调控对河西地区滴灌春小麦生长和水分利用的影响
Effects of soil water regulation in growing period on spring wheat growth and water use in Hexi areas under drip irrigation
摘要
Abstract
In order to explore the drip irrigation mode to improve the growth and yield of spring wheat in Arid Ar-eas,field plot experiments were carried out with the spring wheat species of Yongliang 4 .Five lower soil water limits (i . e.W1(55%、60%、55%、50%),W2(60%、65%、60%、55%),W3(65%、70%、65%、60%),W4(70%、75%、70%、65%)and sufficient irrigation (CK)(75%、80%、75%、70%))were applied at different growing stages (emer-gence~tillering,jointing~booting,heading~anthesis,filling~maturity)to study the effects of soil water regulation on spring wheat growth,yield and water use efficiency in Hexi areas .The results showed that at the same fertilizer level,the increase in lower soil water limits increased the plant height and LAI of spring wheat .Compared with the W4 treatments, the plant height and LAI of the sufficient irrigation treatment (CK)increased by 2 .19%and 7 .93%.However,com-pared with sufficient irrigation treatment (CK),total dry matter accumulation and its distribution amount to grain of W4 treatment had significantly increased respectively by 5 .63%and 17 .14%.With the increase in lower soil water limits, the field and water use efficiency(WUE)in all treatments increased first and then decreased .Compared with W3 treat-ments,the water use efficiency(WUE)of W4 treatment was reduced by 2 .82%.However,the treatment W4 showed the highest field,which was increased by 7 .53%and 4 .07%,compared with that of the W3 and CK treatments .In sum-mary,the appropriate soil water regulation at growing stages is beneficial to the growth and high yield of spring wheat . Comprehensively considering the water saving and high field,the treatment W4 is selected as the optimal water treatment under the present experimental conditions .关键词
滴灌/春小麦/土壤水分/产量/水分利用效率Key words
drip irrigation/spring wheat/soil water/yield/water use efficiency分类
农业科技引用本文复制引用
张雨新,张富仓,邹海洋,陈东峰..生育期水分调控对河西地区滴灌春小麦生长和水分利用的影响[J].干旱地区农业研究,2017,35(1):171-177,7.基金项目
国家“十二五”863计划项目（2011AA100504）；农业部公益性行业科研专项（201503124）；教育部高等学校创新引智计划项目 （）
