When will peach trees be pruned?

Pruning period of peach trees can be divided into winter pruning (dormant pruning) and summer pruning (growth pruning). Winter pruning can be carried out after defoliation in autumn and before germination in the following spring, especially in late autumn. Pruning early, the wound is easy to heal, and the cut buds grow well, which can promote the flower buds to be full and full. Pruning in summer can be carried out from germination to branch stop, especially in May-August. Early coring, low branching position, early formation of new shoots, full buds, easy control of overgrowth, and good lighting conditions in the hole.

Peach trees are usually pruned in the early winter dormancy period from 165438+ 10 to 65438+February, which has the least damage to peach trees and is easy to master. Autumn pruning is more reasonable. After the fruit is harvested, the juice on the tree will not run away, but it is best to seal your mouth when pruning the big branches.

Pruning method:

1, shortcut

It refers to cutting off a part of annual branches. Now it is mostly used for young trees to cut off the elongation head at one third of the full bud, which is conducive to expanding the crown, increasing the sharpness of the main branches and enhancing the load of the main branches.

2, refinement

Cutting branches completely from the base is called thinning. Thinning is mainly to make the density of branches moderate and evenly distributed, improve the ventilation and light transmission conditions of crown, and enhance the development ability of branches and flower bud differentiation ability. The purpose is to adjust the number of fruiting branches and eliminate over-dense branches, overlapping branches, cross branches, competitive branches and pest branches. Because thinning reduces the amount of branches and leaves, if it is too much, it will weaken the growth of the whole tree. Most fruit trees are weak in the initial stage, but weak and strong in the later and aging stages.

3. Compact records

Don't cut annual branches, which is also called throwing. Long release is the main method of pruning long branches of modern peach trees. The technology of "long branch pruning" is one of the most important technical reforms in fruit tree pruning. The traditional pruning method of peach trees is "over-pruning", while the modern pruning method of peach trees in winter is to keep all the branches that can be left as fruiting branches long and not cut (not short).

4. Shrinkage and shearing

Cutting off a part of perennial branches from 2-3-year-old branches is called "shrinking" and "retracting". Shrinkage and shearing can regulate growth, make rational use of space and renew and restore vitality. On peach trees, it is often used to prolong the retraction of the main branch and push it backward, which can make the back branch immortal and bald. Perennial main branches should adopt the eight-character policy of "timely retraction" and "combination of expansion and contraction"