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果树一旦步入中老龄,多现枝条萎缩、干枯,树体老化等现象,果品无论质量还是数量,都呈下降趋势,开始出现“大小年”这样极度困扰果农的难题。而在沂源县南麻镇上高村“‘垂柳型修剪法’老龄果树示范园”里,尽管满园尽是树龄32年的老龄苹果树,但与普通同龄果树不同,它们不仅棵棵枝繁叶茂,且单株坐果达四、五百斤者比比皆是。这些苹果树,是怎样长春不老、永葆生机的呢?“靠得是赵圣厚老师的‘返老还
Once the fruit tree enters the middle-aged, many branches are atrophied, withered, the phenomenon of tree aging, the quality of the fruit or quantity, have shown a downward trend, began to appear ”size year “ This extremely puzzled farmers problem. In the village of Nanma, Yiyuan County, ”“ weeping willow pruning method ’old fruit tree demonstration garden,’ although the park is full of 32-year-old aged apple trees, but with the same age different fruit trees, they not only Kekezhi Fan Ye, and the plant fruit up to four, five hundred pounds abound. These apple trees, is how Changchun is not old, always vigorous? ”Rely on Zhao Shenghou teacher ’