安徽农业科学2020，Vol.48Issue(6)：30-32,3.DOI:10.3969/j.issn.0517-6611.2020.06.009
春季不同时期灌水对冬小麦产量的影响
Effect of Irrigation on Winter Wheat Yield in Different Periods in Spring
摘要
Abstract
In order to clarify the best period of spring irrigation in central and southern Hebei (represented by Shijiazhuang)，the main wheat varieties with larger planting area were selected in Zhao County， and the effects of spring irrigation on winter Wheat yield in different periods were tested. The results showed that irrigation at early standing stage played an obvious role on regulating and controlling winter wheat population, but had no significant impacts after the stage of jointing. Irrigation at the early stage of jointing had a great influence on the number of ears per hectare, and irrigation from the standing stage to jointing stage had the same effects on the number of grains per ear, and the 1 000-grain weight declined with the delaying of 1 water irrigation in spring. It was concluded that irrigation Lime in spring should be set based on field population and precipitation. When the number of stems of winter wheat at the standing stage was less than 12.0 million/hm2，the first irrigation in spring should be conducted in the middle and late stage(before the four leaves in spring) ; When the number of stems ranges from 12.0 million to 16.5 million/hm2，the first irrigation in spring should be carried out at the early stage of jointing(before the five leaves in spring); When the number of stems exceeded 16.5 million/hm2，the irrigation should be delayed, and the first irrigation in spring should not exceed the late stage of jointing (before the dew tip of flag leaves).关键词
冬小麦/灌水/产量/产量构成因素Key words
Winter wheat/Irrigation/Yield/Yield component factors分类
农业科技引用本文复制引用
孙明清1,李娟茹1*,安庆学2,刘鑫翠1,刘强1,张辉1,侯大山1,李光1,宋小颖1,高倩1..春季不同时期灌水对冬小麦产量的影响[J].安徽农业科学,2020,48(6):30-32,3.基金项目
石家庄市科学技术研究与发展计划项目(181490292A). （181490292A）
