1. When the seedlings grow to conform to the pruning mode, the upper branches should be pruned, topped and pitted, which can inhibit the growth of the upper branches, and the tree potential nutrients will be concentrated and transported to the uninjured branches below to make them grow thicker. Therefore, according to the shape design, long and thick branches (generally the first and second branches at the lower part) will gain growth advantages and grow thick quickly without pruning, topping, coring and picking leaves temporarily.

2. When the long and thick branches need to be tied, bent and reshaped, we should pay attention to the upward point of the branches so as to restore vitality as soon as possible and continue to grow and thicken. If the branch tip is downward, the nutrient loss of this branch will be weakened, the growth will be slow, and it will take some time for the branch tip to rise naturally. So the growth advantage is concentrated at the top.

3. For the branches that need to grow thick, if the lateral roots directly below them grow downward, the vitality of this part can be strengthened and the growth of the upper branches can be promoted. In sunny days, it is especially necessary to spray water on the branches that need to grow thick and fertilize outside the roots. At the same time, pay attention to strengthen the management of water, fertilizer, pests and diseases of seedlings, promote the vigorous growth of seedlings, and accelerate the growth and formation of seedlings.

Extended data:

Precautions:

1, the branches on the back of the cliff are too strong or too big. In this case, it is necessary to adjust the tree potential in time, otherwise water and nutrients will be taken away by it, and the cliff will be suppressed and destroyed.

2. Tree species with rotation cutting habits, such as conifers, should choose 1-2 branches according to the best angle, and delete the rest.

3, the roots shrink and the seedlings are big. Initial planting should be based on raising, and it is not suitable for re-cutting. It's not too late to consider modeling after you are younger.

4. On the branch of the shoulder pole at the shoulder height of the trunk, you should go to a brace. When the branches are too few to be sparse, they should be twisted by restraining one branch, raising the other branch or changing the extension angle to avoid rigidity.

5. The top branches on the front of the trunk should be cut off, and the branches can't completely pass through the trunk to form latch branches. This kind of distortion is like twisting your arm backwards, which is not pleasing to the eye.

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