一、深翻扩穴改土。秋季9月至10月份,进行全园深翻扩穴改土,根据土壤pH值5.5以下的果园每2至3年全园撒施熟石灰60—100公斤一次。通过深翻,将石灰,杂草埋入土中,地下害虫翻出土面,以减少越冬病虫源。土壤深翻深度为20—30厘米之间,近主干处应浅翻,远主干处宜深翻。对逐年进行扩 First, deep plowing change hole to change soil. Autumn September to October, the whole garden deep shucao acupoints to soil, according to the soil pH value of 5.5 or less every 2 to 3 years, the park salsted lime 60-100 kg once. Deep plowing, the lime, weeds buried in the soil, underground pests out of soil surface, in order to reduce overwintering source of pests and diseases. Depth of soil depth of 20-30 cm, near the trunk should be shallow flip, far trunk should be deep plowing. To expand each year