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1.树冠大小是苹果树结果多少的基础,迅速形成树冠.增加结果部位,才能为早期丰产奠定基础。在幼龄阶段苹果树的营养物质多趋向营养枝的生长点。根据这一特点,对不足三年生的乔砧苹果树,加强营养生长,促进迅速形成树冠,使树冠内各类枝早日布满,以增加结果部位。在整形修剪上应以截为主,促进分枝,以增加枝量。2.当幼树进入4-5年生时,就应采用以缓为主的剪法,使营养枝迅速转化为结果枝。以国光、金冠品种为例,采取先促后缓,促缓结合,适当轻剪的修剪技术。特别从第4年开始,采取以疏剪缓放为主的适当轻剪后,由于增加了全树总枝芽量,不仅扩大了营养面积,增加了结果部位,同时防止了徒长,缓和了树势,调节了生长与结果的关系。
1. Canopy size is the basis for how much the apple tree results in the rapid formation of a canopy. Adding results to the site can lay the foundation for early harvest. In young age apple tree nutrients tend to vegetative shoot growth point. According to this feature, less than three-year-old Joe ancestral apple tree, to enhance vegetative growth and promote the rapid formation of canopy, so that various branches within the crown sooner or later to increase the results of the site. Trimming should be based on the plastic trim, promote branching, in order to increase the amount of branches. 2. When saplings enter 4-5 years old, they should be used to slow the main shear method, so that the rapid conversion of vegetative branches of fruiting branches. To Guoguang, Golden Delicious varieties, for example, take the first to promote slow, promote slow combination, the appropriate light cut pruning technology. Especially since the fourth year, with the appropriate pruning with pruning and relaxation, due to the increased total pruning of whole trees, it not only expanded the area of nutrition and increased the fruiting parts, but also prevented the leggy growth and eased the tree Potential, adjusting the relationship between growth and outcome.