过去,我们对果树的一些过密过旺的大、中型临时枝采用环割、环剥、拧条、拿枝等方法促其成花,结果,然后再疏除。这种方法往往因剪口过大而不能愈合。剪、锯口处出现干枯桩,或因腐烂病菌侵入造成溃烂,导致树势急骤衰弱,缩短了果树寿命。针对这一问题,我们从1978年开始连续几年结合夏季修剪,采用了多头皮下接来处理果树大、中型临时枝,收到了很好的效果。其做法是:用18—30厘米长的枝条作接穗,在冬季修剪果树时,把大、中型临时枝作好标记留下, In the past, we used the methods of ring cutting, girdling, twisting, holding branches and other methods to promote the flowering of some large and medium-sized temporary branches of fruit trees that were too dense. We then dredged them. This method is often too large and can not heal healing. Shear, saw kerf dry pile, or due to the invasion of rot bacteria cause ulceration, resulting in sudden weakening of the tree potential, shortening the life span of fruit trees. In response to this problem, we have been using summer pruning for several years in succession from 1978 and adopted the method of treating the large and medium-sized temporary branches of fruit trees with the scalp and then receiving good results. Its approach is: 18-30 cm long branches for the scion, pruning fruit trees in winter, the large and medium-sized temporary branches left marked,