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采用“3414”试验设计,探索花生间作大豆条件下氮磷钾配施效应,经过肥料效应函数拟合,研究了氮磷钾肥不同比例配合施用对花生、大豆产量的影响。结果表明:花生各施肥处理较不施肥处理增产21.48%～45.84%,大豆增产23.67%～63.32%,综合肥料效应函数分析表明花生间作大豆高产推荐施肥量(kg.hm-2)为:N166.39、P2O5224.91、K2O 125.45,即N∶P2O5∶K2O=1.33∶1.79∶1。
The experimental design of “3414” was used to explore the effect of NPK fertilizing on peanut intercropping soybean. Through the fertilizer effect function fitting, the effects of NPK fertilizers with different proportions on peanut and soybean yield were studied. The results showed that the yield of peanut was increased by 21.48% -45.84% and the yield of soybean was increased by 23.67% -63.32% compared with the no-fertilization treatment. The comprehensive fertilizer effect function analysis indicated that the recommended amount of fertilizer (kg.hm-2) was: N166. 39, P2O5224.91, K2O 125.45, ie N: P2O5: K2O = 1.33: 1.79: 1.