Winter cutting is the key to fruit trees

Fruit tree winter shears should distinguish flower buds and leaf buds

In the winter pruning of fruit trees, the pruning methods for flower buds and leaf buds are different. If the flower buds and leaf buds are not distinguished, it may be cut by mistake. Especially for fruit trees that have already produced large and small annual phenomena, correctly identify flower buds and Leaf buds are especially important.

Distinguish the flower buds and leaf buds. Observed from the external morphology, the flower buds are full and full, the base of the bud is thin, and the top is slightly skewed, that is, "neck is thin and the head is biased". After removing the scales, you can see a small fluffy green ball. Leaf buds generally show upright buds, with thick bases, thin tips, not full, hairy, and dark in color. After the scales are peeled off, there are only a few needle-like green tips inside. In short, flower buds are full buds, large and round, with bright scales, round tops, thin necks and partial heads; leaf buds are thin buds, with thick top necks, thick hairs, and black.

See flower pruning The purpose of flower pruning is to accurately determine the quantity and quality of flower buds and make targeted adjustments to avoid the formation of large and small years. For fruit trees that have formed young and old, they should be pruned carefully and reasonably according to the strength of the tree. For large-year fruit trees with a large amount of flowers and good bud quality, a part of the flower buds on the middle and long fruit branches should be cut off to achieve the purpose of replacing flowers with flowers, reduce the amount of fruit in the year, and meet the nutrient requirements for fruit growth and flower bud formation . In the years when the amount of fruit is insufficient, the flowers should be preserved, and even the flowers should be kept to ensure the output of the year. However, for weak trees with a lot of flowers, more flower buds on weak branches should be cut off, and only flower buds on strong branches should be kept.

Grasp the Five Principles of Fruit Tree Winter Cutting*********

Fruit tree winter shears must follow the following five principles: First, the choice of tree shape should conform to the characteristics of the fruit tree variety; second, the tree shape should be conducive to the ventilation and light transmission and three-dimensional results of the tree crown; the third is to control the height and crown of the tree. The range should be considered comprehensively according to different geographical environments. Generally, the height of the tree should be controlled below 3 meters, and the crown diameter should be controlled at about 3 meters. Fourth, it is convenient to simplify the cultivation and the fine management of the growth period. 45 trees per mu are planted with high yield branches. The quantity configuration is controlled at 1 to 4 large branches, 6 to 12 middle branches, and 80 to 150 different types of branch groups; fifth, the replacement and retraction of different types of branch groups should be updated on the basis of stable and high yield ( The cultivation of the small branch group is the key), less retraction, and thinning of branches are carried out to prevent the aging and weakening of the fruit branch group from causing problems such as baldness at the back of the branch group, reduced yield or reduced fruit quality.

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