冬小麦储水灌溉节水增产效果分析

储水灌溉是利用土壤水库调蓄作用，把地面水以较大灌水定额通过灌溉储存在土壤中的一种灌水方法。可以做到以丰补欠，秋冬水春夏用，汛期水非汛期用，提高水源利用率，达到节水增产目的。同时可以减少农田灌溉高峰期用水量，缓解工农业和作物间争水矛盾。本文以冬小麦储水灌溉试验为例，分析了储水灌溉节水增产效果及其机理，并给出了当地冬小麦储水灌溉适宜灌水时间、灌水定额及管理要求。

Effect of Water saving and Yield increasing of Water storing Irrigation for Winter Wheat

The water storing irrigation is an irrigation method that the surface water is stored in soil,through irrigating,by augmenting the irrigation water quota for use when the water is not sufficient to meet irrigation demands.In the north China,for example,storing up the water in autumn or winter for the use in spring or summer next year,storing up the water in flood season for the use in non flood season.This method can raise the irrigation efficiency and lower the water requirement during the peak period of irrigating,moderate the contradiction of water supply between industry and agriculture.In this paper,the water storing irrigation test for winter wheat is taken as an example,the effect and the mechanism of the water saving and the yield increasing of the water storing irrigation are analysed,and the suitable time,suitable quota,together with the managing requirement,of the water storing irrigation for winter wheat have simultaneously been proposed.