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利用大型防雨设施池栽，设置施肥和灌水二因素三水平，就夏玉米肥水用量与水分利用率的关系进行了研究。结果表明，增肥、增水均可有效地提高水分利用率，增肥效应大于增水效应。高、中水量条件下，高肥量获得最佳水分利用率，低水条件下，中肥量的水分利用率最高。高肥条件下，中水量获得最佳水分利用率，中、低肥量条件下，中水量的水分利用率最高。高肥中水是高产节水的最佳组合；高肥高水是超高产的最佳组合；中肥中水及低肥中水是低投入高水分利用率的最佳组合。
The use of large-scale rain-proof facilities pool planting, setting fertilizer and irrigation two factors and three levels of summer maize fertilizer and water use efficiency were studied. The results showed that both increasing fertilizer and increasing water can effectively increase the water use efficiency, and the increasing fertilizer effect is greater than the increasing water effect. High and medium water conditions, the best fertilizer to obtain the best water use efficiency, low water conditions, the amount of fertilizer in the highest water use efficiency. In the condition of high fertilizer, the optimum water use efficiency of middle water was obtained. Under medium and low fertilizer conditions, the water use efficiency of middle water was the highest. High-fat water is the best combination of high-yielding and water-saving. High-fat and high-water is the best combination of super-high yield. Medium-fat and low-fat water are the best combination with low input and high water use efficiency.