Pruning method:
1. Bud-wiping and bud-removing means that after flowering, the overgrown buds on the crown, the back buds on the main branches, the competitive buds under the incision and the buds on the upper branches are erased in time, and the two tender new shoots are "removed and one is left", and the young trees are removed and the weak ones are left. This method can reduce useless new branches and shoots, save nutrients, improve illumination and reduce wounds caused by thinning branches in winter.
2. Picking the heart is to remove a twig at the top of the branch. By removing the core, the growth of branches can be controlled and fuller flower buds can be formed at the lower part of branches. In the early stage of shoot growth, enucleation can also promote the early germination of secondary buds and make them differentiate into fuller flower buds.
3. Twisting tip refers to twisting the upper half of the upright wood flourishing branch 180 and stuffing it into the axilla half of the leaf (pay attention to prevent it from tilting again). This can change the growth direction, control the growth, transform it into flowers and branches, and improve the illumination at the same time.
4. Branching refers to pulling up and fixing the main branch or side branch according to the required angle of the tree, and the most suitable opening angle is about 80. If the angle is not large, it is easy to appear the phenomenon of "strong on the top and weak on the bottom", and you can't pull it into an arch, otherwise you will draw strong branches in the bending part. By "pulling the branches", the tree potential can be alleviated and the phenomenon of "bare legs" can be prevented from appearing under the branches.
Generally, big branches over three years old can be carried out in May-September, and the main branches of young trees can only be opened in June-July. Pruning of peach trees in growth period often varies with varieties, tree age, tree potential and climatic conditions. The time and frequency of pruning should be arranged according to the actual situation of the cultivation area, generally from flowering to August, pruning can be done for 2 ~ 5 times.