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[目的]研究不同肥料运筹措施对紫云英生长的影响和增产效果。[方法]通过田间试验,研究氮磷钾肥配合施用对紫云英根瘤数量、鲜草和籽粒产量的影响。[结果]氮磷钾肥对紫云英根瘤数量的影响顺序均为P>K>N。初花期氮磷钾配合施用处理紫云英鲜草产量最高,而盛花期为NP处理最高,氮磷钾肥对鲜草的增产效果为P>K>N。氮磷钾肥对紫云英籽粒产量的影响大小顺序为P>K>N。[结论]增施磷肥是提高紫云英鲜草和籽粒产量的关键。氮肥、钾肥后移对紫云英籽粒产量提高也有一定的作用。
[Objective] The research aimed to study the effects of different fertilizer management measures on the growth of Astragalus sinicus and the effects of increasing yield. [Method] The effects of N, P, K fertilizers on nodule number, fresh grass and grain yield of Astragalus sinicus were studied through field experiments. [Result] The order of influence of N, P, K fertilizer on the nodule number was as P> K> N. The yield of fresh grass of Astragalus sinicus was the highest at the first flowering stage, while NP was the highest at full flowering stage. The yield of fresh grass was higher than that of NPK fertilizers (P> K> N). The effect of NPK fertilizer on the grain yield of Astragalus sinicus was in order of P> K> N. [Conclusion] The application of phosphate fertilizer was the key to improve the yield of fresh grass and grain of Astragalus sinicus. Nitrogen and potassium fertilizers have some effect on the increase of grain yield of Astragalus sinicus.