Fruit tree pruning "Winter light, spring tone, summer stability, autumn weight"

The traditional fruit tree pruning principle is "Winter Heavy, Summer Light, and Autumn Pine". After the traditional pruning method was used to cut winter crops, although the total number of branches left per acre tree decreased more, but in the fall of the following year, many branches were added. Moreover, fruit trees need larger leaf area in the spring, because the winter shears are too heavy to cut, and the amount of branches left is too small, the larger leaf area cannot be formed. This not only affects the tree production in the current year, but also has an adverse effect on the flower bud formation, the quality of flower buds, and the growth of the leap year tree.

According to the law of growth and development of fruit trees, the modern pruning principle is changed to "Winter Light, Spring Breath, Summer Steady, and Autumn Heavy." In summer, it is necessary to balance the growth of various parts of the tree and stabilize the tree potential. Should be lightly cut, pruning should be stable; autumn, the fruit needs the most time, but at this time due to a heavy tree crown and make light worse, this time trimming heavier, can enhance the light: spring is the fruit tree photosynthesis and improve Good timing for early nutrition levels. Spring pruning is mainly to adjust; winter is to adjust the structure of the tree, to achieve the miniaturization of the tree, the structure is simple, the period of rejuvenation of old and weak trees or branches, should not be over pruned.

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