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甘肃东部旱作区小麦产量变幅大，水分生产力变化极不稳定，但潜力很大。冬小麦降水和土壤水分生产力平均为０．９２ｋｇ／ｍｍ和０．８５ｋｇ／ｍｍ；春小麦为０．７０ｋｇ／ｍｍ和０．７５ｋｇ／ｍｍ。土壤贮水量是旱作区小麦生产力的最重要因素。秋季土壤贮水量是翌年小麦产量的基础，有收无收的关键，对产量的贡献最大；小麦产量对春季土壤贮水量的利用率最高，对小麦高产优质至关重要。
The yield of wheat in the dryland of eastern Gansu province fluctuates greatly, and the variation of water productivity is extremely unstable, but it has great potential. Winter wheat precipitation and soil water productivity averaged 0.92 kg / mm and 0.85 kg / mm for spring wheat and 0.70 kg / mm and 0.75 kg / mm for spring wheat. Soil water storage is the most important factor in wheat productivity in arid areas. Soil water storage in autumn is the basis of wheat yield in the following year, which has the key to confiscation and has the greatest contribution to yield. Wheat yield has the highest utilization rate of soil water storage in spring and is very important to high yield and quality of wheat.