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[目的]研究了氮、磷、钾肥对团豆单株有效荚数、粒数的影响。[方法]运用三因素二次回归饱和D-最优设计方案,进行了团豆高产栽培试验研究。[结果]结果表明:氮、磷、钾对单株有效荚数的影响大小依次为磷肥(X_2)、氮肥(X_1)、钾肥(X_3);对粒数的影响大小依次为磷肥(X_2)、钾肥(X_3)、氮肥(X_1)。[结论]综合考虑纯氮、纯磷、纯钾在22.5~37.5 kg/hm2区间内,有利于团豆单株有效荚数、粒数的提高。
[Objective] The research aimed to study the effects of N, P and K fertilizers on the effective pods and grains of bolls. [Method] The high-yielding cultivation experiment of bollworm was conducted using the three-factor quadratic regression saturated-D-optimal design scheme. [Result] The results showed that the effect of N, P and K on the effective pods per plant was in the order of phosphate fertilizer (X 2), nitrogen fertilizer (X 1) and potassium fertilizer (X 3) Potassium (X_3), Nitrogen (X_1). [Conclusion] Considering pure nitrogen, pure phosphorus and pure potassium in the range of 22.5-37.5 kg / hm2, it is in favor of improving the effective pod number and grain number per plant.