Pruning technique of Cherry Bonsai

Potted cherry blossoms in spring, the fruit is ripe in early summer, the flowers are beautiful and colorful, which is of ornamental value. The fruit ripening period is very early and the flavor is good.

In pruning, attention should be paid to the selection and retention of the main branches of young trees, which should be cut short to promote the growth of strong branches, and grow more branches in their infancy. On the basis of certain branches, some oblique moderate branches were released slowly to promote the formation of flower buds and promote the growth of more flower buds. Western cherries mainly bear fruit in bouquet-like fruit branches, and the top leaf buds of flower-like fruit branches should be protected when pruning. All kinds of fruit branches of Chinese cherry can bear fruit. Some long, medium and short fruit branches should be cultivated. Potted cherries entering the fruiting stage should pay attention to retraction and renewal for slender branches, senescent branches and so on.

In principle, the pruning of cherries is mainly carried out in the growing season, but due to the restriction of the actual production situation, sometimes the pruning work in the growing season is not in place, so it needs to be pruned before sprouting in spring. Pruning before sprouting should not move large branches as far as possible, reduce the wound to prevent glue flow, and mainly cut short to remove dense branches and competitive branches. Pruning is generally required to be finished by March 10. The pruning principles of fruit trees in different periods are as follows:

The main results are as follows: 1. The young trees remove the overflourishing erect main branches and overprosperous overgrowing branches on the middle trunk, and mainly draw the branches and carve buds to the retained main branches and lateral branches on the main branches. The opening angle of the main branch is 70 degrees, the opening angle of the side branch is 70 degrees, and the opening angle of the side branch is 70 degrees. When pulling the branches, they should be drawn into a line and should not be drawn into a bow. Bud carving is usually carried out before bud germination in early March, and the purpose is to promote lateral branches on the main branch.

2. When the tree is 4-7 years old in the first fruit stage, it is necessary to adjust the tree structure and pay attention to the cultivation of the fruiting branch group on the main branch. First, the main branches that are too low and too dense are gradually removed so that the main branches do not affect each other; second, they are properly retracted without branches to promote branches. The third is to retract or rejuvenate the weak lateral branches and ease the growth to promote flower formation.

3. In the full fruiting stage, the tree structure should be adjusted to improve the scenery conditions in the crown, and the extra erect branches, over-dense branches, overlapping branches and cross branches in the crown should be resolutely thinned, so as not to disturb the tree shape and consume nutrition. If the tree is too high, drop its head in time and be happy to control the crown height with weak branches.

After pruning, be sure to deal with the wound, saw stubble when sawing should be flat, do not leave piles, to prevent splitting, in order to avoid wound infection disease, conducive to wound healing, must use a sharp knife around the skin and xylem flattened, and then use Baume 5-degree stone sulfur mixture or fungicide for disinfection, and then protect. The common protection methods are smearing lead oil, paint, thin mud, plastic film, etc., these wound protection methods can prevent the wound from losing water and further expand, but it is not as effective as smearing wound protective agent in promoting wound healing. Now there are some commercial special wound protective agents for fruit trees, which can be used in production or prepared by ourselves.

1. Liquid wax: 6 parts of rosin, 2 parts of animal oil, 2 parts of alcohol and 1 part of turpentine. First heat the rosin and animal oil at the same time, stir well, remove from the fire to cool down, then slowly add alcohol and turpentine, stir well and bottle and seal.

2. Rosin clear oil mixture: 1 part of rosin and 1 part of clear oil (phenolic varnish). First heat the clear oil to the boil, then add the rosin powder and mix well. More clear oil should be added when used in winter, and rosin can be added in hot days.

3. Soybean oil copper agent: prepared with soybean oil, copper sulfate and hydrated lime. First grind the copper sulfate and cooked lime into a fine powder, then boil the soybean oil into the pot until boiling, then add the copper sulfate and cooked lime to the oil, stir fully, and then use it after cooling.

In addition, cherry trees often pull branches untimely or branch angles pull too dead, causing the big branches to split from the base after pulling branches. For this kind of injury, you should use sticks to support, and scrape the split place in time, and then wrap it with plastic film to promote wound healing. Split branches can not be tightly tied back to the original place, let it continue to split state, wound healing is often better than returning to the original position.

Time: 2019-06-10 Click: