Cup crown
This pruning method should be selected. After the annual grafted seedlings are transplanted, the trunk should be 1 meter high, and then the top branches should be cut off, and strong buds should be left at the cutting mouth. Below 1 meter, it can be selected as the trunk and main branch.At a distance of about 40 cm from the ground, the new branch should be left as the first main branch; Then, at about 30 cm above the first main branch, select and leave new branches and buds as the second main branch; Finally, use the new branch extracted from the scissor bud as the third main branch p>
During pruning, the upright branches on the main branches and the sprouting branches and buds on the main branches shall be cut off to prevent them from affecting the growth and formation of the main branches p>
When pruning again in the second year, each main branch shall be short cut, and strong buds shall be left at the cutting edge to cultivate the main branch and prolong its growth p>
Open center crown
Select the grafted seedlings that have been growing for one year. After seedling transplantation, cut and cut at 60cm as the main branch. Generally, three main branches can be selected and left, and the main branches will grow radially p>
After determining the main branches, all the other branches should be cut off p>
When pruning in the winter of the next year, the main branch can be cut short at 50 cm to promote the growth of lateral branches p>
The remaining redundant branches can be cut off, which will form a natural heart-shaped crown< span>