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采用4因素二次饱和D?最优设计,通过微机模拟计算,建立了大豆产量与大豆专用肥中氮、磷、钾、褐煤等主要成分用量的数学模型.对参试因素及其产量进行了较系统的分析,获得了最高产量施肥量;筛选出大豆产量12001800KG/HM2时,以150KG/HM2为间距的5组专用肥主要成分优化组合方案;当大豆产量≥1800KG/HM2时,专用肥中主要成分最佳用量为:氮肥(N)38?9588?23KG/HM2,磷(P2O5)为47?76106?25KG/HM2,钾(K2O)为14?0445?17KG/HM2,褐煤为159?05318?60KG/HM2.试验结果为大豆专用肥配方提供了数量化指标“,”A mathematical model,that simulates the contents of the main ingredients like N,P,K,and grey coal in the special soybean fertilizer,was studied in 4×2 saturation D best design Comparisons between predicated and experimentally observed results of the soybean production showed general agreement Further simulations were performed with five optimal integrated designs for the main ingredients of the special soybean fertilizer(150kg/hm 2at each group interval)and at soybean production ranging between 1200 and...