First, the significance of plastic pruning

1, cultivate an ideal tree with plump, complete, symmetrical, compact, strong and beautiful branches.

2, improve the ventilation and light transmission conditions of seedlings, reduce pests and diseases, make seedlings robust and improve quality.

3. Promote plant dwarfing.

Second, the time and method of shaping and pruning

1. Pruning time: it is divided into growth period pruning and dormancy period pruning, also known as summer pruning (from April of that year to June of 10) and winter pruning (from June of 10 to April of the following year).

2, the method of shaping and pruning

Bud smearing: Pay attention to the number, distance and spatial position of main branch buds, and generally leave 3-5 branches. For the extra buds, all the growing points can be erased or removed, leaving more leaves.

Picking: Picking the growing points of branches.

Shortcut: cut off some branches and divide them into the following five types.

Extremely light and short cutting: only the terminal bud and 1-3 branches under the terminal bud are cut off;

Light and short cutting: only the top of the branch is cut off, which generally does not exceed1/5 of the total length of the branch;

Medium and short shears: the cut is at the full bud of the middle and upper branches, generally below 1/2 of the total length of branches;

Heavy and short truncation: the branches above 1/2 to 4/5 are truncated;

Extremely heavy and chopped: only 2-3 buds remain in the branches at the base.

Thinning: Cut off all branches or branches.

Pull out branches: Change the original direction and position by pulling out branches, branches or big branches and continue to grow.

Carving: A method of removing part of bark or xylem from a branch or trunk with a knife or scissors, thus affecting the growth potential of the branch or trunk.

Circumcision: Cut the phloem with a knife at the cross section of the branch.

Girdling: At the crosscutting position of the branch, cut the phloem twice with a knife or girdling knife, leaving a certain distance between the two circles, which is generally110 of the branch diameter, and remove the cut cortex to expose the xylem.

Branch: branch longitudinally from the center and divide into two petals.

Chemical pruning: it is a method to regulate the growth and development of plants by using growth promoters or growth inhibitors and retarders.

From /news/show.php? Itemid=725 1 Landscaping Seedling Shaping and Pruning, I wonder if it will help you.