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本文以吉林省中部地区主栽的吉研2号大白菜为例,采用D-饱和最优设计(R206)试验的方法,对种植密度与氮肥施用量两项主要农艺措施进行了系统研究。通过试验的有关数据建立起产量函数的模式,解析了种植密度(x_1)、硝酸铵施肥量(x_2)这两项主要栽培因素对产量的单独效应和互作效应,提出了大白菜种植密度与硝酸铵施用量的最佳配合方案。埯距采用40cm,硝酸铵施用量为28.31kg/mu,产量达10420.24kg/mu。
In this paper, taking Ji-Yan No.2 Chinese cabbage mainly planted in the central part of Jilin Province as an example, two major agronomic measures of planting density and nitrogen fertilizer rate were systematically studied by the method of D-Saturated Optimal Design (R206). Based on the data of the experiment, the mode of yield function was established, and the individual effect and interaction effect of two main cultivation factors (planting density (x_1) and ammonium nitrate fertilizer (x_2)) on yield were analyzed. The planting density of Chinese cabbage Ammonium nitrate application rate of the best program of cooperation.埯 distance using 40cm, ammonium nitrate application rate of 28.31kg / mu, the yield of 10420.24kg / mu.