果园生草可提高土壤中有机质含量,改善土壤结构,增进地力。据调查,果园生草可较大幅度地提高土壤有机质、腐殖质、富里酸含量,即使果园不增加有机肥,生草后土壤中腐殖质可保持1%以上,而且土壤结构良好,尤其对质地粘重的土壤,改土作用更大。果园生草还较好地减轻了水土流失;夏季 Grass orchard can increase soil organic matter content, improve soil structure, improve soil fertility. According to the survey, orchard grass can significantly increase the soil organic matter, humus, fulvic acid content, even if the orchard does not increase organic fertilizer, the grass after the grass can maintain more than 1% of the soil, and the soil structure is good, especially for the texture sticky Soil, soil improvement role. Orchard grass is also better to reduce soil erosion; Summer