How to trim bayberry after picking fruit? What are the precautions?

When it comes to the bayberry fruit picking period, many fruit growers ignore the management after bayberry fruit picking in order to be busy picking bayberry. During the fruit harvest period from June to August, red bayberry will begin to shoot and flower bud differentiation, which needs to supplement a lot of nutrients to speed up the recovery of tree potential, cultivate excellent fruiting mother branches and promote flower bud differentiation. How to trim the bayberry after picking? What are the precautions?

First, how to trim bayberry after picking fruit?

When pruning, bayberry trees should follow the principle of "tree pruning, shaping with branches, visible immortality, asexual disorder", improve light and ventilation conditions, and make full use of tree space and light.

The pruning of bayberry is roughly divided into two stages. For the first time, after picking the fruit, that is, at the end of June and the beginning of July, the higher branches (open skylight) are sawed off by cutting, thinning, injuring and other methods. When pruning in winter, it is necessary to remove overdense branches, erect branches, competitive branches, disease and insect branches, do not leave stakes, adjust the opening angle and orientation of the main branches, adjust the tree structure from a large aspect, and reasonably shrink the outgoing branches that have not been pruned for many years, so as to keep the crown compact. Adjust the internal structure of bayberry, remove strong branches on the back, dense weak branches on the back, overlapping branches, control competitive branches, use auxiliary branches to select and cultivate small and medium-sized fruiting branches. The second time is in February of the second year, mainly pruning red bayberry twigs, cutting off disease and insect branches, withered branches, dense branches, vertical long branches, late autumn shoots, cutting off part of non-flowering branches and multi-flowering trees; for prosperous trees that grow too vigorously, low fruit setting rate and low yield, ring cutting, ring peeling, inverted peeling and root cutting can be used to control the growth of bayberry trees.

II. Points for attention in shaping and pruning of red bayberry

1. The tree transformation is completed year by year.

In summer, only 1-3 main branches and 2-4 sub-main branches were sawed off every year. If the angle of the main branch and the secondary branch is not enough, it should be adjusted by means of brace, tension, hoisting and so on.

2. Strictly control the tip

After sawing big branches in summer, new shoots were produced near the saw and shearing mouth, and 2 or 3 strong shoots were selected by space, and the fruiting mother branches were cultured. The superfluous tips should be erased in time.

3. The amount of pruning depends on the tree

The pruning amount of big year tree and weak tree is 1 big 4 times 1 hand 3 of the whole tree leaves, and that of small year tree and strong tree is 1 big 6 times 1 hand 5. 2.3 when sawing large branches, it is not appropriate to leave piles when sawing large branches. When sawing large branches, they should be sawed or cut off from the base of the big branches, leaving no pile head and reducing the emergence of new shoots. The face of the saw should be tilted slightly downward and the wound healing agent should be applied to protect the wound. With a hand saw, first saw a small half circle at the bottom of the branch, and then cut it off slightly oblique to the lower part from the upper part of the bifurcation point.

4. Strengthen cultivation and management.

Timely do a good job in soil, fertilizer and water, flower and fruit protection, pest control and other management work to ensure that "shaping and pruning" to achieve the desired results. The general requirement after pruning is that the crown spacing between trees is ≥ 20cm, the light path between rows is more than 50cm, the crown height is less than 2.5m~3.5m, the trunk height is 30cm~40cm, the tree body has 3 to 4 evenly arranged main branches, each main branch has 2 to 3 staggered secondary branches, the branch angle between the main branch and secondary branch is ≥ 45 °, the tree body is dwarfed and the crown opens, forming a low trunk natural happy shape or low trunk evacuation stratification.