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通过对黄河下游井渠结合灌区用水现状的分析，以作物腾发量预测计算为基础，按作物根系层水量平衡原理；建立了井渠结合灌区用水预报模型，并利用该模型对人民胜利渠灌区的用水进行了分析预报。实例计算结果表明，该模型不仅计算结果合理，而且能够根据当时当地的天气和作物生长特性预报各种作物的灌溉水量、灌水时间等，可以提高灌区管理部门的工作效率和管理水平，达到节水灌溉的目的。
Based on the analysis of current situation of well-water irrigation in the lower reaches of the Yellow River, based on the prediction and calculation of crop evapotranspiration, the principle of crop water balance in crop roots was established. The forecast model of well-water irrigation combined with water use was established. The water was analyzed and forecast. The calculation example shows that this model can not only calculate the reasonable result but also predict the irrigating water amount and irrigation time of various crops according to the local weather and crop growth characteristics at that time, which can improve the working efficiency and management level of irrigation district management department, The purpose of irrigation.