What are the five pruning methods for trees?

1, medium and short cutting: cutting to the full bud in the middle or upper part of the branch (the cutting length is 1/3- 1/2), which is mainly used for rejuvenation of some weak branches and cultivation of backbone branches and extended branches of various trees.

2. Light and short pruning: light pruning of the top of branches (1/5— 1/4 of the total length of branches) is mainly used to prune the strong branches of flowers and fruits. This pruning method stimulates the germination of most semi-full buds at the lower part of the branches after the top tip is removed, which disperses the nutrients of the branches, so that the branches of ornamental flowers and fruit trees in the garden can grow more short and medium branches in the coming year, which is easy to form flower buds.

3. Rough and short shears: cut off 2/3-3/4 of the total length of branches. This pruning method has a great stimulating effect, and is mainly used for the renewal and rejuvenation of weak trees, old trees and old weak branches.

4. Extremely heavy and short cutting: leave 1-2 dead buds at the base of the tree belt, and cut off all the others. Wei Zi often uses this method.

5, retraction: it is to cut off some perennial branches. Because trees grow for many years, they are far from the top of branches and their legs are easily exposed at the base. In order to reduce the dominant position of the top and promote the renewal and rejuvenation of the base of perennial branches, the method of retraction and pruning is often used.