钾素供应水平对三七生长发育及产量的影响

Effects of Potassium Suppliment Level on the Growth and Yield of Panax notoginseng

研究了不同施钾水平对三七生长发育及产量的影响。结果表明,施用钾肥能有效提高三七植株的性状,尤以株高和叶面积大小最明显;不同施钾水平对三七单株根重和产量存在明显差异,随着施钾量的增大,单株根重和产量逐渐增加,K-4营养条件下达最大。高钾水平(45kg/亩)有利于三七生长。

Study on the effects of different potassium suppliment levels on the growth and yield ofpanax notoginseng throngh field experiments showed that application of potassium fertilizer could effectively improve the quality of panax notoginseng rplant, especially the plant height and the leaf areas; There was obvious difference in the root weight of single plant and yield between different suppliment levels of potassium, and with the increasing, the root weight of single plant and yield increased gradually, especially the level of K4 that was high potassium level （45 kg/mu）.