Litchi pruning technique

Litchi is a mature fruit tree in summer, with a large tree shape and many branches. After one year of growth, litchi trees can be pruned in order to maintain robust tree potential. Generally pruning is to change the tree structure, adjust the crown fruit branches, improve the internal environment of the crown. But many people will have the problem of not knowing how to trim, so pay attention to the following content of this article.

I. Purpose of pruning

General pruning is to save nutrition, concentrated nutrition supply high-quality healthy branches, promote growth. Or concentrate nutrition supply fruit development, balance the relationship between vegetative growth and reproductive growth. It is also to improve the crown structure, adjust the number and conditions of fruiting mother branches, and ensure the quality of fruiting. Finally, pruning to maintain an evacuated structure can reduce the occurrence of pests. Some of the extra useless leaves, only consumption, must be cut off.

I. Trim time

Young trees, mainly vegetative, do not bear fruit, so they can be pruned at any time of the year. However, pruning is mainly carried out in the second year after the establishment of juvenile trees, which is about three minutes after the adult tree is grown. Young tree pruning is mainly to cut off diseased branches, thin branches, dead branches and leaves, and then select and leave side branches. Adult trees are mainly carried out after fruit harvest. At this time, the nutrient consumption of the tree body is large, and some branches need to be trimmed to maintain the tree vigor.

II. Trimming method

1. juvenile tree

Young tree pruning is mainly through pruning to achieve the purpose of plastic, select the right part of the bud ready for shooting buds, and then remove all other buds. Shoots and buds can be left more, because after shooting, thin shoots should be carried out, healthy new shoots should be selected for lateral branch development, trunk and selected lateral branches should be carefully removed, top advantage should be removed, and growth should be limited to a certain height. Later on, pruning the inside of the crown, which is probably finalized, can generally cut off dense branches, cross branches, overlapping branches, and thin branches. If there are pests and diseases, cut off the diseased branches in time. All pruning wounds need to be painted white to accelerate healing and prevent infection.

2. adult trees

In half a month or so after fruit picking is best, generally, to cut off the old leaves first, the good closed and nutrient consumption. Then is the pest branch, dead branch pruning, can increase the inner hall with ventilation, reduce humidity and temperature, reduce the possibility of disease. At this time pruning is the best time to set autumn shoots, autumn shoots are also the main part of tree rejuvenation, generally can keep good autumn shoots, do the next year's fruit mother branch, subtract some old fruit mother branches, do not retain autumn shoots are cut off. Generally, one or two autumn shoots should be left on a branch, and the direction of the leaves should be staggered. After pruning, collect all the pruned branches and burn them. Apply antiseptic to large wounds for quick healing.

Litchi tree pruning, not only according to the age of pruning, but also according to different periods, different purposes, different environments to do pruning work, but in planting according to their own needs to comprehensively consider pruning.