Apple tree winter shears should not be late

Apple trees pruned at different times have significant differences in water content, tree growth and yield in the trees. The trees pruned from November to January are higher than the bound water in the tree tissues of the pruned trees in March of the following year. The former grows vigorously, the results are good, the yield is high, and the resistance to low temperature, drought and cold is also good. Also greatly increased. From November of each year to March of the following year, the earlier the pruning, the more favorable it is to promote the growth of fruit trees, and the later the pruning, the less the promotion of tree growth.

Initial result tree pruning

The 5~8-year-old saplings have entered the fruiting stage. The focus of pruning is to clean the densely-branched branches between the layers, improve the lighting conditions of the trees, and gradually transition the results to the backbone branches. The squeezing place cleans up 2~3 pieces every year and strives to clean up in 3 years. After several years of adjustment and cleaning of the tree plant, the small crown sparse layer retains 5 main branches, 1~2 auxiliary branches, and the free spinning shape retains 10~13 main branches.

Pruning of mature trees

The pruning of mature apple trees should be aimed at “improving the illumination, improving the quality of the branches, and stabilizing the quality and increasing the yield”. The focus of pruning is to eliminate the oversized densely bred large branches, large side branches and large branches in batches. The large branches retained above the second layer are outwardly extended by a whip, and the total branches account for less than 20% of the total branches of the whole tree, so as to facilitate the illumination of the inner layer.

If the crown is high, it depends on the strength of the tree and gradually grows happy. The height of the tree is controlled below 3.5 meters. If the canopy has been handed over, the surrounding densely squeezed group should be removed or transformed into a small branch group, and the branches should be shortened. In the meantime, the direction of the main lychee and the angle are changed, so that the upper and lower sides are staggered, and the crown distance is kept at about 1 meter, so as to improve the illumination conditions of the group and the individual. In the pruning, special attention should be paid to the adjustment of the illumination. For some large branches that affect the illumination, it must be resolutely removed and unrelenting.

Tree potential and branch balance

In the trimming, we must pay attention to the adjustment, the former strong and then weak, the upper strong and the weak, etc. must be. The main branch is 1/3 to 1/5 of the middle stem, and the branches on the main branch should be 1/5 to 1/7 of the main branch, which is larger than the one who is resolutely removed. Branch aging, lack of ability to retract and update in time, in general, the results do not smoke the fruit of the side of the tip of the aging.

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