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一、树体管理老龄梨树或衰弱的梨树,在准备改接换头前一年要加强肥水、病虫害等方面的管理,并注重疏花疏果工作,使之少结果,促进梨树的复壮,有利于第二年提高嫁接成活率。在嫁接前2-3天或在嫁接过程中对老弱梨树进行修理,疏去过多的骨干枝和辅养技,将留下准备改接的主、侧枝截去先端的1/3-1,4。两侧的分枝,凡枝粗在1-3cm,每隔20cm左右留一个砧桩,其余背上、背下及两侧多余的分枝从基部疏除。剪截砧桩时最好在嫁接部位以上留30cm左右的枝干,可用做绑扶嫁接后萌发的枝条用,但是在砧桩前端需切腹接的可不留。若留30cm 左右的绑扶桩,往往需第二次截去,不注意时易将嫁接枝条折断,此法费时、费功,大风
First, the tree management Old pear or weak pear, one year before preparing to change the head to strengthen the fertilizer, pests and other aspects of management, and pay attention to the work of thinning thinning fruit, so that less fruit and promote pear Rejuvenation, is conducive to improving the survival rate of grafting the second year. 2-3 days before grafting or in the grafting process to repair the old and the weak pear tree, sparse to the backbone of excess branches and support skills will be left to prepare for the change of the main, collateral truncated apex 1 / 3- 1,4. Branches on both sides, where the branches thick in the 1-3cm, leaving an anvil every 20cm or so, the rest of the back, back and both sides of the excess branches sparse from the base. Cut the cut anvil when the best place to stay in the graft more than 30cm left and right branches can be used to tie grafting after the germination of branches with grafting, but in front of the anvil pile incision can be left without. If you stay about 30cm tied stakes, often need to cut a second time, do not pay attention when it is easy to graft branches break, this method time, power work, gale