试验研究了 ６ 种多年生牧草的耐酸性及酸性土壤磷、钾、镁肥对牧草的影响⒚结果显示：耐酸性为羊茅草、毛花雀稗＞ 白三叶草、多年生黑麦草＞ 草地羊茅、红三叶草⒚耐酸牧草在不同 ｐ Ｈ 条件下植株的含铝量、含磷量差异不大；耐酸性弱的牧草 在低 ｐ Ｈ 条件下，植株含铝 量显著较高⒚缺磷、缺 钾和缺镁处理的产量分别 为完全肥料处理 的 １１％ ～１７％ ，８７％ ～９３％ ，７７％ ～９０％ ，显 示这些土壤中缺 磷是限制牧草产量的主要营养元素⒚缺磷处理植株磷、钾含量显著较低，氮含量显著较高⒚ The results showed that the acid-fastness was fescue, Prunella vulgaris> white clover, perennial ryegrass> fescue, red foxtail Under the condition of low p H, the plants with low acid resistance had significantly higher contents of aluminum, phosphorus, potassium deficiency and lack of phosphorus The yields of magnesium treatment were 11% -17%, 87% -93% and 77% -90%, respectively, of total fertilizer treatment, indicating that phosphorus deficiency in these soils was the main nutrient that limits forage yield. Phosphorus, potassium Significantly lower content, nitrogen content was significantly higher ⒚