2. Picking: Picking is also a common pruning method for persimmon trees in summer. For some valuable branches and developing branches on young trees, when they grow to about 35cm, they should be picked properly to control the growth of branches. Let it grow secondary branches as soon as possible, so as to grow into fruiting mother branches. For some new shoots produced by regeneration and high grafting, it is also necessary to select suitable parts for coring. Let it grow secondary and tertiary shoots, and then cultivate them into backbone branches. For young trees with vigorous growth, the extended tips of trunk and main lateral branches can be reserved for coring, which can increase the number of branches and promote the formation of crown.
3, pulling branches: persimmon trees have strong growth ability, so the branches are generally upright. If it is not treated, the crown capacity will be closed, which will affect the overall image of persimmon trees and have a great impact on yield. Therefore, pruning should be combined when shaping young trees and high grafting trees. Relieve tree potential, improve crown structure and branch growth direction. Ensure that the new branches can be pulled at an ideal angle and direction before lignification.
4. Ring cutting: Ring cutting is suitable for healthy young persimmon trees and persimmon trees with vigorous growth but few flowers. When entering the early flowering stage, circumcision can be carried out to improve the fruit setting rate of persimmon trees and reduce physiological fruit drop. Ring cutting is to cut the trunk or main branch around the knife twice or so. If it is a fruit tree or a large fruiting branch group, the intensity of girdling can be appropriately increased according to the actual situation. Ensure that it reaches the xylem, but be careful not to hurt the mother branch, and the adjacent ring cuts can be kept at about 4cm.