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在地膜覆盖条件下，采用二次回归通用旋转组合设计，对影响玉米产量和效益的施氮量、施磷量、施氮肥时期和种植密度四项农艺措施进行了综合研究。结果表明，在北疆灰漠土上，施氮量对产量的贡献最大，其次为种植密度和施磷量，施氮期对肥料效益和产量有明显的作用。通过建立二元二次施肥、密度效应方程模型，最高经济施肥量氮为３４３．４ｋｇ／ｈｍ２，五氧化二磷１２１．５ｋｇ／ｈｍ２，氮磷比为１∶０．３５，种植密度为７８４５０株／ｈｍ２，氮肥施肥时期为６０％底施，４０％１２叶追施或一次性底施，此时可达到最高经济产量１４６０２．５ｋｇ／ｈｍ２，扣除施肥成本，每公顷玉米收入为１１０５６．８元。
Under the conditions of plastic film mulching, quadratic regression general rotation combination design was used to study the four agronomic measures that affect the yield and benefit of corn, such as nitrogen application rate, phosphorus application rate, nitrogen application period and planting density. The results showed that on the gray desert soil of northern Xinjiang, the nitrogen contribution to the yield was the largest, followed by the planting density and phosphorus application rate. The nitrogen application period had a significant effect on the fertilizer benefit and yield. Through the establishment of binary fertilization and density effect equation model, the highest economic fertilizer nitrogen content of 343.4kg / hm2, phosphorus pentoxide 121.5kg / hm2, nitrogen and phosphorus ratio of 1:0.35, planting density of 78,450 strains / Hm2, nitrogen fertilization period of 60% of the bottom facilities, 40% of the top 12 leaf topdressing or one time, this time to achieve the highest economic output 14602.5kg / hm2, after deducting fertilization costs per hectare of corn income 11056.8 yuan .