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1984—1990年对80亩14—19年山地苹果园覆草试验结果表明:旱地果园覆草,能培肥土壤、提高土壤含水量,保持较稳定的土温。所以覆草园较对照园
1984-1990 80 acres of 14-19 years of apple orchard mulching test results show that: dry grass orchards mulching, soil fertility can be improved soil moisture, to maintain a more stable soil temperature. So covered grass garden than the control garden