Technical points of winter shearing of green plum

Pruning is an indispensable management in the growth process of green plum, and the most important thing for fruit tree pruning is winter shearing. Winter shearing of green plum looks more complex, which can be summarized as truncation, retraction, thinning and throwing. Let's take a look at the detailed introduction with the editor.

1. Truncation

Short cut is in the annual branch pruning part, leaving part, according to the degree of pruning can be divided into light, medium and heavy three kinds. Cut off a short cross; cut off near the full buds in the middle of the branch and call it medium short; cut off most of the branches and call it heavy short. The main purpose of short cutting is to stimulate the germination and prolong the reproduction of the bud under the cutting mouth. In general, light truncation can ease the growth potential and promote the formation of flower buds, and many plants with strong growth use this method. Middle and short cuts cultivate backbone branches and shape trees for young trees, while Sister Chongdan is mainly for strengthening growth, which is generally used for weaker plants.

2. Retraction

Retraction is the truncation of multi-year branches, which is more used in controlling auxiliary branches, cultivating fruiting children and renewing old branches. The effect of retraction on branches, because the size of the wound left during pruning is different, and the wound will enhance the next year, so the retraction of green plum depends on the situation to determine the size of the wound.

3. Thinning branches

Thinning means that a branch is cut off directly from the base, and the wound of the thinning branch is controlled above, and the bottom is mainly promoted and strengthened. on the backbone branch, the thinning branch can be cut a little bit, so it can weaken the upper stage. Branch thinning is mainly to remove over-dense branches and overgrown branches, which can not only increase the permeability of the crown, but also save the consumption of nutrients, increase the nutrient accumulation of fruits, and is better for flower bud differentiation and flowering and fruiting in the coming year.

4. Throw away

Throwing is also called long release, it is called long release without truncation of annual branches, and more medium and short branches can be formed after branch growth, which is conducive to the formation of flower buds. At the same time, competitive branches, overgrown branches, backbone branches and erect branches can not grow, otherwise it will disturb the tree type and affect the plant permeability, which is extremely disadvantageous to plant growth.

The above is the introduction of winter shearing techniques of Qingmei. I hope it can help you. If you want to know more about it, please follow us.