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1984—1989年,对山地80亩14—19年生苹果园进行了覆草试验。结果表明,覆草园较对照园的6年平均亩产与一级果率分别增加49.6%和39.1%,果实可溶性固形物含量与单果重分别提高18.49%和13.33%。果园进行多年覆草,能培肥土壤,提高土壤含水量,保持较稳定土温,促进根系发育,增进树体生长与结果。文中还指出了果园覆草应注意的事项。在有草源的地区,果园覆草是一项值得大力推广的技术措施。
In 1984-1989, the grass covering experiment was conducted on 80-year-old 14-19-year-old apple orchard in mountainous area. The results showed that the average yield per mu and the first-order fruit in the pasture garden increased by 49.6% and 39.1% respectively over the six-year control. The soluble solids content and fruit weight increased by 18.49% and 13.33% respectively. Orchard grass for many years, can fertilize the soil, increase soil moisture, to maintain a more stable soil temperature, promote root development and increase tree growth and results. The article also pointed out the orchard mulching should pay attention to the matter. In grassland areas, orchard grass is a worthy promotion of technical measures.