目的 以甘肃不同产区栽培红芪药材及其生长土壤为研究对象,探讨土壤营养成分全氮、全磷、全钾、有机质、速效磷、速效钾与红芪中毛蕊异黄酮、芒柄花素量的相关性。方法 采用Duncan多重比较、相关性分析及回归分析对土壤营养成分量及红芪活性成分量进行分析。结果 毛蕊异黄酮与土壤中全氮、全钾存在显著正相关性,与有机质、速效磷呈正相关,与速效钾、全磷呈负相关;芒柄花素与土壤中全钾存在极显著正相关性,与全氮、速效磷呈正相关,与速效钾、有机质、全磷呈负相关。结论 红芪对土壤中不同营养成分具有选择性,全钾、全氮、速效磷量高的土壤适合于红芪中毛蕊异黄酮与芒柄花素成分的累积,说明全钾、全氮、速效磷较高的土壤有利于红芪药材的生长。

Objective Taking the Hedysari Radix cultivated in different regions in Gansu province and its soil as the research objects, the correlation of contents between soil nutrients, including total N, total P, total K, organic matter, available P, available K, calycosin. and formononetin in Hedysari Radix were analyzed in this paper. Methods The correlations of the contents between soil nutrients and active components were analyzed by the multiple comparisons, correlation analysis, and regression analysis. Results The statistical results showed that there existed obviously positive correlations between calycosin and the contents of total N and total K of soil. Calycosin is positively correlated with the contents of organic matter and available P, while with available K and total P, it is negatively correlated. Meanwhile the contents of formononetin and total K existed significantly positive correlations. Formononetin was positively correlated with the contents of total N and available P, but it was negatively correlated with available K, organic matter, and total P. Conclusion When the plant grows, it absorbs some ingredients of soil selectively. The accumulations of calycosin and formononetin are affected by the contents of total K, total N, and available P, which shows that the soil with higher total K, total N, and available P is conducive to the growth of Hedysari Radix.

国家自然科学基金委员会资助项目(地区科学基金项目):甘肃地产药材红芪道地性与生态因子的相关性研究(81360621)