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根据农业系统工程学“最佳模拟配合”原理，采用“多元二次正交旋转组合设计”的方法，研究了豫西丘陵旱地小麦基本苗、施氮量、施磷量对产量的效应，结果证明：各因素对小麦产量的影响程度依次为氮肥、磷肥、基本苗，增施肥料是小麦增产的基础；豫西丘陵旱地小麦产量随磷肥的增施而增加，与氮肥施用量呈抛物线状，以 １５～１８ｋｇ／６６７ｍ ２ 最高；在其它微效和独效采用最佳水平时，每６６７ｍ ２ 的产量在 ３００ｋｇ 以上时应采取的农艺措施是施纯氮 １５～１８ｋｇ，纯磷 ６～７ｋｇ，基本苗１６～１９ 万株。
According to the principle of “best simulation and cooperation” of agricultural systems engineering, the effect of basic seedlings, nitrogen application rate and phosphorus application rate on yield in the hilly dry land of western Henan was studied by the method of “multiple quadratic orthogonal rotation combined design” It is proved that the effect of each factor on the yield of wheat is followed by that of nitrogen fertilizer, phosphate fertilizer and basic seedling, and the application of fertilizers is the basis of wheat yield increase. The yield of wheat in hilly dryland in west Henan increases with the increase of phosphorus fertilizer, With the highest of 15-18 kg / 667m 2; the other agronomic measures should be 15-18kg of pure nitrogen, 6-7kg of pure phosphorus, The basic seedlings 16 to 190,000.