1. The main purpose of pruning young black and yellow bark seedlings is to cultivate dead branches, balance the tree potential and adjust the growth trend of branches;

2. Let the trees have a certain number of main branches and lateral branches, so that the crown of the black and yellow bark seedlings is thicker and fuller, which provides a good basic guarantee for high yield in the later period;

3. Although the seedlings with black and yellow skin are easy to produce new branches, the branching ability is relatively weak from the point of view of single branch;

4. In order to promote the germination of more lateral branches, we often need to cut them short in time;

5. Pruning often adopts light pruning, and black and yellow saplings are pruned once a year in Xia Dong;

6. Shorten the new branches that grow too long, thin the branches that grow too densely, and cut off all the twigs of pests and diseases;

7. However, in the process of pruning, it is necessary to grasp the whole situation. Under the condition of ensuring that the backbone branches of black and yellow seedlings have enough room for development, the lateral branches should be reserved appropriately to form a branch group to better improve the crown.