目的 探讨施肥对宽叶羌活产量及品质的影响,为优质高产栽培提供理论依据。方法 通过N 和P 的不同配方施肥进行大田试验,根据《中国药典》中的测定方法,对宽叶羌活产量、浸出物的量和挥发油的量进行测定。结果 不同的施肥配方对宽叶羌活产量、浸出物的量和挥发油的量都有很大影响,其中处理N₂P₂最高,较对照(CK)分别增加了43.33%、17.95%、43.48%。施肥量的不同对单株也有一定的影响,在根质量和根粗方面,也均以处理N₂P₂较好,各处理与对照之间在根粗方面均达到了显著性差异。结论 氮肥和磷肥的施用量及配比对宽叶羌活产量及品质有较大的影响,但是不合适的施肥会降低其的产量和品质。

Objective The effect of fertilizer application on yield and quality of Notopterygium forbesii was studied in order to provide a theoretical basis for high quality and yield planting.Methods With various nitrogenous(N) and phosphorous(P) fertilizer formula,the field tests were carried out to determine the yield,extract content,and essential oil content,from the root of N. forbesill.Results Showed that various proportion of fertilizer had a great affect on yield,extract content,and essential oil content,and the treatment with N₂P₂ was the highest.The yield in the treatment with N₂P₂ increased 43.33%,the extract content increased 17.95%,and the essential oil content increased 43.48% as compared with CK.Different rates of fertilizer application had a certain effect on weight and diameter in the root of N. forbesii,and the N₂P₂ was the best.Each treatment had a significant effect on diameter in the root of N. forbesii in comparision with CK.Conclusion Amount and ratio of N and P fertilizers have a greater influence on the yield and quality,while improper application could reduce the yield and quality.

甘肃省自然科学基金资助项目(0710RJ2A089)