摘要： 在河北省山前平原小麦—玉米两熟区,在传统的施肥种类和施肥量基础上,采用3个灌水次数处理,A1(起身拨节水)、A2(起身拨节水、孕穗水)、A3(起身拨节水、孕穗水、灌浆水),研究了春季不同灌溉制度对冬小麦籽粒产量构成和水分生产效率的关系。结果表明,春一水处理明显降低了小麦穗粒数和粒重,春二水处理与春三水处理之间差异不明显;春二水处理的水分生产效率最高。

关键词: 冬小麦, 灌溉制度, 产量构成, 水分生产率

Abstract: Studied on the effect of dissimilar irrigation to the factors of winter wheat yield or the water usage effective based on the traditional fertilization in the zone of wheat-maize production one year in Hebei province,involved A1(irrigate on the time of wheat jointing),A2(irrigate on the time of wheat jionting and booting),A3(irrigate on the time of wheat jointing,booting and filling).As a result,the A1 treatment reduced the kernels per-spike and weight per kernels evidently,no distinction between A2 and A3 treatments;the A2 treatment has the highest WUE among A1,A2 and A3 treatment.

Key words: Winter wheat, Irrigation system, Factors of yield, WUE

中图分类号: 

• S512.1