树势过强和过弱均不利于果品质量的提高。适宜生产优质果的树势标准是,外围新梢年生长量在30～35cm之间,5月下旬～6月上中旬封顶枝比例在80％左右。因此,对旺树和弱树均应进行树势调整。旺树可在5月下旬～6月上旬进行一次环剥,或间隔15～20天进行两次环切,并减小冬季修剪量,以生长季修剪为主。在5～6月份疏除部分旺长枝条和密挤枝条,但这次 Tree vigor and weakness are not conducive to the improvement of fruit quality. Suitable for producing high-quality fruit tree potential standard is that the peripheral shoots in the annual growth of 30 ~ 35cm between late May ~ June on the middle of the top of the top of the top cover about 80%. Therefore, tree vigor and weak trees should be adjusted. The Mongolian tree can be circumcised in late May ~ early June, or cut twice in 15 ~ 20 days intervals, and the amount of winter pruning can be reduced, mainly in the pruning season. In May ~ June sparse part of the Mongolian branches and dense crowded branches, but this time