Pruning and pruning of peach trees must be carried out on the basis of good soil, fertilizer, water management and pest control, so as to alleviate the contradiction between vegetative growth and reproductive growth, delay the migration of fruiting parts, and prolong the growth of peach trees. Fruit period. How to prune peach trees of different ages? Come and find out quickly!
Pruning of young trees: According to the design density of the orchard, the shaping and pruning work is carried out according to the designed tree shape and tree structure, and the cultivation of the fruiting branch group is basically completed. The commonly used tree shape of peach trees is three main branches, which are heart-shaped, Y-shaped, and trunk-shaped. The height of the mature seedlings is 40 to 60 cm, and groups of medium and small fruiting branches are evenly distributed on the main branches.
Pruning of peach trees during the first fruiting period: The first fruiting period is generally 3 to 5 years after planting. At this stage, the size of the tree has reached the design requirements, the shaping work has been completed, the growth of the tree has tended to ease, and the yield has increased year by year. The main task is to continue to cultivate the backbone branches, and at the same time focus on cultivating the fruiting branch group. The resultant branch group mostly uses vigorously growing branches. After short pruning and thinning, it can be formed in 3 to 4 years. Large, medium and small fruiting branch groups should all have branch extension branches, and change the growth direction to make the branch group bend and grow upward to prevent the lower part from being weak and the upper part from being strong, and to prevent the upper part from being too prosperous and the lower part from being weak.
Pruning of peach trees during the fruiting period: 1. Pruning of the fruiting branches. The pruning of the resultant branch groups can adjust the density between the branch groups. You can thin out the branches and retract them to make them from dense to thin, from weak to strong, renew and rotate, and maintain good ventilation and light. The general requirements are staggered growth, uniform layout, reasonable angles, and clear priorities. 2. Trim long tips. Its main purpose is to simplify pruning technology, save pruning labor, make the tree early fruit, high yield and stable, and easily maintain the balance of vegetative growth and reproductive growth of the tree. Generally, one long fruiting branch is retained at 15~20cm on the main branch. The distance between branches on the same side is generally more than 40cm. The number of branches retained in the whole tree is 50%~60% of the traditional short-cut pruning method. The length of retained fruiting branches is 40~70cm.
Pruning of peach trees in the senescent stage: Its main tasks are: to retract and renew the backbone branches, and to use the leggy branches that sprout from the inside to cultivate the fruiting branch group to maintain a certain yield. Winter pruning is the main method. Use large branch groups at appropriate locations to replace weakened backbone branches, try to retain the leggy branches that occur in the inner and lower parts, and use the leggy branches as backbone branches. When the leggy branches grow to 40~50cm, cut or pinch the tips to promote the germination of secondary shoots. Then cultivate the secondary shoots with a suitable angle and orientation into extended branches, and then cultivate them into fruiting branch groups to fill the vacant areas. The fruiting branch group should be retracted, shortened and updated, and as many reserve branches as possible should be left.