通常认为百脉根对酸性底土有一定耐性,然而能够证实这种观点的研究十分有限,仅仅是根据一个品种的试验得出的。 Mckee(1961)指出,在pH5.5条件下,‘Viking’百脉根比苜蓿甚至比红三叶都生长良好,不过其幼苗生长则需较高pH值(6.2～2.5)。Hunt和wagher(1963)报道,生长在pH值4.9土壤上的豆科和禾本科 Lotus root is usually considered to have some tolerance to acidic subsoil, however, the research that can prove this view is very limited, only based on the test of one species. McKee (1961) pointed out that at pH 5.5, ’Viking’ grew better than clover and even more than red clover, although its seedling growth required higher pH values ​​(6.2-2.5). Hunt and Wagher (1963) reported that legumes and grasses growing on pH 4.9 soil