三七GAP基地土壤养分分析与肥力诊断

Soil nutrient analysis and soil fertility diagnosis in GAP base of Panax notoginseng

对三七GAP基地的土壤质地、供肥特性和土壤肥力进行了调查和分析,结果表明,三七GAP基地土壤以壤质粘土为主,偏酸性,土壤肥力水平较高,但各养分因子分布不平衡,氮、磷元素基本满足三七生长的需求,而钾元素普遍不足,在栽培管理上,应根据三七的生长特点、不同生长期及具体的种植片区对养分的要求制定施肥方案,并注意多施钾肥。

Soil texture, fertilizing characteristics and soil fertility in GAP base of P. notoginseng were analyzed and diagnosed.Results showed that the soil texture mostly was loamy clay with slight acidity. The level of soll fertility was high in GAP base, but nutrients distribution was unhalaneeable： nitrogen and phosphorus in soil could basically satisfy the crop growthlbut potassium was not enough. So in cultivation practices of P. notoginseng, plan of fertilizer applying should be made according to the nutrient requirements in different growing periods and locations, extra potassium fertilizer should be added.