Effects of 3 Water Use on Spring Wheat Under the Condition of Deficit Irrigation

This paper carries on the irrigation experiment under the deficit irrigation condition-different irrigation times and different irrigation quota,considers irrigation and none irrigation two factors.The experiment has 3 treatments,27 experiment plots in order to research moisture content utilization index and the efficiency of water production of spring wheat.The result indicates that soil water and irrigation water is beyond 80% in growing period to spring wheat yield,and the precipitation and soil water can not be ignore to the wheat yield.Thereby it reveals and assesses the value of precipitation,irrigation water and soil water.In arid condition,the high moisture content utilization ratio is under the risk of decreasing yield,in practice,we should combine with the other factors to optimize and utilize.