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研究结果表明，果园生草覆盖时0～20cm土壤有机质、速效钾和全氮含量增加，Ca，Fe的含量也有不同程度增加；处理树叶片中Ca，Fe含量高于耕作施肥果园，其他矿质营养接近或略低于施肥果园；生草覆盖处理增加了0～20cm土层中有机质及速效氮含量，而对40～60cm土层影响不明显。
The results showed that the content of soil organic matter, available potassium and total nitrogen in 0 ~ 20 cm soil layer increased with the increase of Ca and Fe in the grass orchard, the contents of Ca and Fe in the treated leaves were higher than those in the fertilized orchards and other mineral nutrients Close to or slightly lower than the fertilization orchards; grass cover treatment increased the content of organic matter and available nitrogen in 0 ~ 20cm soil layer, but had no significant effect on 40 ~ 60cm soil layer.