The video tutorial on the pruning method of apple trees is as follows:

1. Pruning of young trees of different ages 1. For pruning of one-year-old trees, it is necessary to perform stem treatment and control the stem height. At 70-80 degrees, ensure 3-4 full buds. When the new shoots mature, all the tender new shoots at the fixed height should be wiped out.

2. When pruning biennial saplings, attention should be paid to pulling the branches in time when they sprout. The main branches can be pulled to an approximately horizontal angle, and the auxiliary branches should be pulled. For dense branches and prolonged competition, The branches should be thinned out in a timely and reasonable manner, and the branches should be topping, and strong branches should be selected as the second layer of main branches to cultivate auxiliary branches, and other branches should be short-cut.

3. Prune three-year-old saplings. When pruning, use girdling method to control the growth and make flower buds form. Winter pruning should cultivate about 3 strong branches for cultivating the third tree. Layer the main branches and auxiliary branches, and control the tree vigor.

4. The purpose of pruning four-year-old saplings is to increase yield. At this time, the skeleton of the apple has been formed and will begin to bear fruit. The pruning method should be to regulate the balanced growth of the tree and promote The purpose is early harvest.

2. Pruning of saplings with different branching abilities. The branching ability of apples is different. For saplings with weak branching ability, heavy pruning can be done appropriately, so as to cultivate fruiting branches and Vegetative branches; for saplings with medium branching ability, only moderate pruning is required; but for saplings with strong branching ability, light pruning is required, and dense branches should be thinned out appropriately. Generally, The principle is to prune weak branches heavily, leave more auxiliary branches, and prune strong branches lightly.