Pruning of cherry trees is usually in summer and winter. Summer pruning is also called growing pruning. Its purpose is to inhibit the growth of new shoots, promote branching and increase the number of branches. Winter pruning is also called dormant pruning. Its main task is to keep the normal growth and fruit balance of cherry trees and adjust the primary and secondary relationship of main branches. Let's take a look at the precautions.

1. Pruning of cherry trees in full fruit:? Under normal circumstances, cherry trees can only enter the full fruit stage after 7-8 years of planting. This period is characterized by rapid growth of output and gradual decline of growth. Pruning in full fruit period is mainly to adjust the tree structure, improve the lighting conditions, maintain the vigorous tree vigor and prolong the full fruit period. ? In the process of pruning, we should always pay attention to thinning weak branches, retaining strong branches, adjusting the balance between growth and fruiting, keeping a large number of new shoots growing and an appropriate number of fruiting branches and vegetative branches, and constantly renewing, rejuvenating and aging.

2. Pruning technology of sweet cherry tree:? The main tasks of annual young trees are to increase branches and grow trees, reshape and expand crowns, cut buds and draw more branches to promote growth, slow branches and cultivate small crowns and sparse layers. ? (1) Fixed stem: after planting, the stem height is 60-80 cm. After germination, the buds below the stem height can be erased, and the buds above 50 cm should be strengthened to cultivate the lower branches. ? (2) Winter pruning: aiming at the flourishing branches and inner branches on the middle trunk or main branch.

3. Pruning method of three-year-old cherry trees: For young cherry trees in the third year, the main pruning task is to finish crown shaping in spring. Based on the principle of restraining the strong and helping the weak, restraining the former and promoting the later, the uniaxial extension pruning method was used to cultivate large bearing main branches and multi-bearing branches with strong uniaxial extension on the main branches, so as to realize early bearing and high yield. Attention should be paid to maintaining the master-slave relationship, balancing the tree potential and adjusting the composition and distribution of branches. It is necessary to distinguish the main branches. Summer pruning of three-year-old cherry trees should be in early July. This time it's a big cherry.