[Objective]The purpose of the study was to discuss the relation between the soil water and crop yield under different water supply conditions.[Method]With winter wheat variety Changhan 58 as tested material.9 treatment combinations with 2 factors of fertility and water at 3 levels of high,mid and low were set up to analyze the yield response of crop under the different nutrient and water conditions on the basis of test data.The water consumptions in different growth stages were studied by using whether data...