Winter cut fruit trees, you must have a steelyard in your heart!

When cutting in winter, the fruit trees that appear before our eyes are static. The length of the main branch, the length of the side branches, and the length of the side branches on the side branches are stereotyped. But don’t forget, fruit trees are alive and dynamic. They will grow again after they sprout next year. As a tree trimmer, you must know how long the main branch and the side branches will grow next year, as well as the side branches. How long will the twigs grow? After many years of observation, I now summarize my experience as follows: In Yuncheng, if the whole tree is cut in winter, if the big branches are not removed, and the small branches are not pruned, that is, the whole tree is not cut, and the annual growth is reduced by about 20%, such as main branches and side branches. The extension head grew 1 foot long last year, and this year it can only grow 8 inches long. But in the Beijing fruit area, because it germinates later and stops growing earlier than the Yuncheng fruit area, the annual growth is reduced by about 30%. Knowing the above truth, you also know why fruit trees need to be cut in winter.

A moderate tree that is neither prosperous nor weak can reduce its growth by 20% every year if it is not cut in winter. A few years later, the mean tree has become a weak tree, so we should reduce the growth point of the mean tree by 20% during winter cutting. Next year this tree will still be the tree of the mean. Of course, the tree is weak, because there are too many twigs, and the growth point should be more than 20% reduced during winter shearing. If the tree is full of stalks, there are few small branches, and the power cannot be dispersed. The amount of pruning during winter shearing means that the growth point should be less than 20%. Reduce the growth point according to the vigorous, weak, and moderate tree vigor, respectively adopt less than 20% or more than 20% or 20% of the amount of pruning to offset the 20% reduction in annual growth. If the weak tree is greater than 20%, it is to make it flourish, while the prosperous tree is less than 20%, which is to let it slow down. Of course, this is a theoretical figure. It is impossible to calculate how many growth points are cut off in winter cutting, and what percentage of the whole tree is.

When pruning the whole tree is weak, the growth point should be reduced by more than 20%. One main branch is weak and the other branches are prosperous. Only the weak main branch is reduced by more than 20%, and the growth point is reduced by less than 20% for the prosperous tree. The same is true for side branches. Weak branches often reduce growth points, while vigorous branches reduce or do not reduce growth points as much as possible.

It is worth noting that, in order to solve the whole tree lighting, one, two or three large branches were thinned at a time during winter cutting, which reduced hundreds or even thousands of growth points. However, a small branch a few inches long was sparsed on the side branch, and the strength of the combination was different. Therefore, the large branch should be removed slowly, but the small branch will not slow down. The sky will be upturned next year. Of course, the plastic surgery has been completed, and there are no extra large branches on the tree to kill. The whole tree is weak, and the branches must be cut to reduce the growth points.

In order to solve the whole tree light, the leader cut and killed three big branches in the winter, the upper side of the wound was weakened, and the lower side was strengthened. On a main branch, the side branches are crossed, too dense, and one side branch is killed. The front side of the wound is weakened, and the back side of the wound is strengthened. The larger the wound, the more obvious the effect. For example, the lateral branches at the back of the wound are weak. They only grow a few inches long this year, and they may grow a few feet in length next year. Therefore, the weak branches at the back of the wound may not reduce the growth points, or reduce the growth points.

Decreasing the growth point is the combined potential, and increasing the growth point is the partial potential. The combination of power is reasonable, and about 20% can be flexibly controlled according to the strong and weak. I don’t think anyone can do the right thing, follow the feeling, and can’t make a big mistake.

If after winter cutting, the growth of new shoots in the second year is greater than that of the previous year. For example, the new shoots were one foot long last year and more than one foot longer this year, indicating that pruning is heavy and winter cutting reduces the number of growth points. If the growth of new shoots in the second year after winter shearing is less than that of the previous year, that is, one foot long last year, and only 8 inches long and 9 inches long this year, it means that the combination is too light and the growth points of winter shears are too small. The pruning reaction is the teacher of the ******.

The frequency of watering, watering time, fertilization, and the number of branches left on the tree will affect the pruning response. Winter pruning is only part of the management of fruit trees.

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