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采用５因子二次正交旋转设计，研究了播期、密度、氮肥、磷肥、钾肥５因素对豫薯１０号产量的影响，建立并分析了产量对５因素的函数模型。结果表明，５因素对产量的影响大小依次为播期＞氮肥＞磷肥＞钾肥＞密度。欲达到１８万ｋｇ／ｈｍ２以上的产量，最佳播期为６月２３日，在本试验条件下不施氮肥，磷肥施用量７５．０９７５ｋｇ／ｈｍ２，钾肥２４９３８４ｋｇ／ｈｍ２，密度为４９２９０５９１４５株／ｈｍ２。
The quadratic orthogonal design with five factors was used to study the effects of sowing date, planting density, nitrogen fertilizer, phosphate fertilizer and potash fertilizer on the yield of Yushu No. 10. A functional model of yield to five factors was established and analyzed. The results showed that the effects of five factors on the yield were sowing date> nitrogen fertilizer> phosphate fertilizer> potassium fertilizer> density. To achieve more than 180,000 kg / hm2 production, the best sowing date is June 23, under the conditions of this experiment, no nitrogen fertilizer, phosphorus fertilizer application rate of 75.097 5kg / hm2, potassium fertilizer 249384kg / hm2, density of 4929059145 / Hm2.