衰老安梨树的更新复壮技术迁西县现有安梨１７万株，其中衰老梨树近３万株。梨树进入衰老期后，表现为对修剪反应迟钝，枝组和树冠外围枝条焦梢，不能抽生长枝条，产量大幅度降低。为使这些衰老梨树继续发挥经济效益，从１９９１年开始，我们在迁西县兴城镇城西峪村进行了... Rejuvenating and Rejuvenating Anti-aging Pear Tree There are 170,000 existing pears in Qianxi County, of which nearly 30,000 are aging pear trees. Pear into the aging period, the performance of the slow response to pruning, branches and crowns outside the branches of the shoot, can not smoke growing branches, yield significantly reduced. In order to make these aging Pear continue to exert economic benefits, we started our business in Chengxiyu Village, Xingcheng Town, Qianxi County from 1991 ...