在栗钙土上采用二因素近似饱和Ｄ—最优设计设置田间试验。结果获得二元二次肥料效应回归方程，当Ｒ在０～２之间，青棵适宜施Ｎ量为５２６～６１６ｋｇ／亩，Ｐ２Ｏ５量为４６１～６９３ｋｇ／亩，青稞亩产２９８～３１７ｋｇ，产投比为５５３～６７６。最佳组合的氮肥利用率为３５９３％，磷肥利用率为１１９３％。 In the chestnut soil using two-factor approximation saturation D-optimal design field experiments. Results The binary regression equation of fertilizer effect was obtained. When R was between 0 and 2, the suitable N application rate was 526 ~ 616 kg / mu and P2O5 was 461 ~ 693 kg / mu for Qingke. Blueberry per mu 29  8 ~ 31  7kg, production and investment ratio of 5  53 ~ 6  76. The best combination of nitrogen fertilizer utilization rate of 3593%, phosphorus fertilizer utilization rate of 1193%.