早春日光温室黄瓜氮肥施用密度与产量的关系

Study on Relationship among N Fertilizer，Plant Density and Yield of Cucumber in Solar Lean-to Greenhouse in Early Spring

以津春3号黄瓜为试材，采用D-饱和最优设计的方法，试验结果经计算机运 算，建立了氮肥、密度与黄瓜产量关系的回归方程，经计算机模拟，筛选出每667m2产量高于4500kg的优化组合为：每667m2施纯氮26.0 6～41.84kg，种植密度3395～3861株。

A regression equation of cucumber yield related to N f ertilizer，plant density was set up by using the D-saturated optimatation desig n method. The optimum combination to get yield 67.5t·hm^(-2) by comp uter simulating is N 390.9～627.9kg·hm^(-2) density of 50925 ～57915 plants per hectare.