For those who don't know how to prune fruit trees a year, we may mistakenly think that pruning is done at most once a year. But in fact, according to our traditional pruning, it should be pruned at least twice a year, because our traditional fruit tree pruning principle is "winter is heavy, summer is light and autumn is loose" That means it will be trimmed about three times. But at present, the concept of fruit tree pruning is once a quarter, and the principle of pruning is "light in winter, moderate in spring, stable in summer and heavy in autumn".

Specifically, fruit trees need pruning for the following reasons:

First, the uncultivated branches grow in disorder and the skeleton is not firm. When there are many fruits, they will bend, droop or even crack, which will damage trees and affect their life.

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Second, fruit trees generally have strong branching ability. Not only dormant buds can germinate into branches, but some new buds of that year can germinate branches many times. If it is allowed to grow naturally, it will not only consume nutrients, but also close the crown easily, which will affect ventilation and light transmission, which is not conducive to the formation of flower buds and the expansion of the crown with the growth of trees. Too many branches and leaves will inevitably lead to the consequences of dense outside and empty inside, premature aging of trees, serious aging, and low fruit yield and quality. Timely and reasonable pruning can play the following roles:

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1, adjust the reasonable distribution of branches and leaves. That is, on the basis of reshaping, the density, distribution direction and leaf area coefficient of each part of the crown are adjusted to maximize the effective photosynthetic area of the crown.

2. Adjust growth and results. Make nutrition grow normally but not too much; Moderate flowering and fruiting without weakening the tree; At the same time, it can prevent fruit trees from aging ahead of time and renew and rejuvenate in time.

3. Adjust the proportion of branches. Short branches have short growth period, low consumption and early accumulation, but few leaves and low total photosynthesis; Vegetative branches have a long growth period and high consumption, but they also accumulate a lot in the later stage. Different tree species and tree ages need to have corresponding and appropriate branch proportions, so that the operation, distribution, consumption and accumulation of nutrients in a year's growth cycle can be coordinated according to the normal growth and reproduction rhythm. This can be achieved by pruning.

4. Pruning can also balance the growth potential between plants in the population and between the main branches of plants, thus achieving balanced yield and easy management. In addition, pruning is also a means to coordinate the growth of shoot and root system.

Fruit.