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覆草是一项重要的果园管理措施.覆草往往能使果实品质增加、产量提高。但是,覆草不是在任何时期都能进行的,它和其它管理措施一样,也讲究适期、适时。不同时期覆草,对果树的影响也不一样。例如:夏季,气温高于土温,太阳的辐射也很强,覆草能阻止热量向土壤中传递,挡住太阳向地面的辐射,使土温下降到适合根系生长的范围,从而促进了根系的生长,有利于果重的增加和果实品质的提高。但是,覆草不能在雨季到来之前进
Mulching is an important orchard management measure, which often results in increased fruit quality and increased yield. However, grass mulching is not carried out at any time. Like other management measures, grass mulching also stresses properness and timeliness. Mulch at different times, the impact of fruit trees are not the same. For example: In summer, the temperature is higher than the soil temperature, the sun’s radiation is also very strong, grass can prevent the heat transfer to the soil, blocking the sun’s radiation to the ground, soil temperature dropped to fit the growth of the root range, thus promoting the root system Growth, is conducive to the increase of fruit weight and fruit quality improvement. However, the mulch can not advance before the arrival of the rainy season