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利用二元二次效应函数法进行北疆棉花高产高效施肥模型的研究。两年的试验结果表明：１． 肥料对棉花的产量效应与对棉花的生理生化效应具有较高的一致性；２． 在北疆土壤气候条件下，磷肥的肥效要高于氮肥的肥效；３． 棉花生产的氮磷配合的最佳用量为：尿素 ４７７．１～４８５．０ｋｇ／ｈｍ ２ ，重过磷酸钙 ２３０．１～２３１．２ｋｇ／ｈｍ ２ ，Ｎ∶Ｐ２ Ｏ５ ＝ ２∶１，此时可获得籽棉最佳产量４６５２．３～５４４２．５ｋｇ／ｈｍ ２；４． 棉花产量对土壤的依存率为 ６６．５％
Study on High Yield and Efficient Fertilization Model of Cotton in Northern Xinjiang by Binary Quadratic Function Function Method. Two years of test results show that: 1. Fertilizer on cotton yield and physiological and biochemical effects of cotton have a high consistency; 2. In northern climate of soil and climate, the efficiency of phosphate fertilizer is higher than that of nitrogen fertilizer; 3. The optimum dosage of nitrogen and phosphorus for cotton production is: 477.1 ~ 485.0kg / hm 2 of urea, 230.1 ~ 231.2kg / hm 2 of superphosphate and 2:1 of N: P 2 O 5, The best seed cotton yield 4652.3 ~ 5442.5kg / hm 2; 4. The yield of cotton on the soil is 66.5%