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本试验采用四因素二次通用旋转组合回归设计方法．对早春大棚茄子的产量与施肥整枝、密度、激素的关系进行了定量研究，建立了茄子产量与四因素的回归模式，分析了各因素之间的相互效应得出了本试验条件下 ６６６ ｍ ２ 产量大于 ３０００ ｋｇ 时，四因素的合理指标是：激素２．４－ Ｄ 用量为 ２４．２～２５．９／ｍ ｇ／ｋｇ、施肥量 ２５．２～２６．７ ｋｇ／６６６ｍ ２ 次、整枝 ６．９～７．５ 果／株、密度 ６０６３～６３６１ 株／６６６ ｍ ２ ．
In this study, four-factor quadratic universal rotation combined regression design method was used. The relationship between yield and fertilization, pruning, density and hormone of greenhouse eggplant in early spring was quantitatively studied, and the regression model of eggplant yield and four factors was established. The interaction between the factors was analyzed and the results showed that under the test conditions, 666 m 2 When the yield is more than 3000 kg, the reasonable indexes of the four factors are as follows: the amount of hormones 2.4-D is 24.2-25.9 / m g / kg and the amount of fertilizer is 25.2-26.7 kg / 666m 2, 6.9 ~ 7.5 fruit / plant, the density of 6063 ~ 6361 plants / 666 m 2.