果园覆草可以提高土壤肥力，保土蓄水，减少蒸发和地表径流，提高土壤含水量。保持较稳定的土壤温度，夏季可以防止烈日曝晒灼伤表面根系；秋末土壤降温减缓，延长了吸收根的生长期，增加树体的营养积累。果园覆草，还可以改善土壤理化性状，增强土壤微生物的活动量，增加... Orchard mulching can improve soil fertility, soil conservation, reduce evaporation and surface runoff, improve soil moisture content. To maintain a more stable soil temperature in summer to prevent sun exposure sunburn surface roots; late autumn soil slowed down, extending the growth of the absorption root, increasing the accumulation of tree nutrition. Orchard grass, but also can improve soil physical and chemical properties, increase soil microbial activity, increase ...