氮、磷、钾施用量及其配比对白芷产量的影响

The influence of the application amount of N,P,K and its provision on the yield of Angelical dahurica var. formosasa

摘要: 采用三元二次回归正交组合设计，试验研究N、P、K施用量及其配比对白芷产量的影响结果表明，白芷产量与N、P、K的供应均为正效应，N、P、K单施低于零水平时，随施用量的增加而白芷产量逐步提高，N、P、K配合施用比单施的产量高。

Abstract: The influence of the application amount of N,P,K and its provision on the yield of Angelical dahurica var. formosasa was studied through 3 years experiments. The result indicates the positive relationship between the provision of N,P,K and the yield of Angelical dahurica var. formosasa. With the ascending of the fertilizers usage, the yield is promoted. The yield of the plant to which the fertilizers are applied is higher than the one to which the fertilizers are applied singly.