Pruning in the growing season refers to the pruning of fruit trees after the budding in the spring to the early fall leaves. During this period, fruit trees have a large number of new shoots and leaves. The storage nutrients in the trees and the nutrients they produced during the year are mostly on the tops of the crowns and in the outer branches. When trimming, cutting off branches will inevitably affect nutrition. The synthesis of substances and the loss of nutrients, thereby inhibiting the growth of roots and weakening the tree. Therefore, the amount of pruning during the growth period should be small, and should be more hands-on, less dynamic shear. When it is necessary to perform dynamic shearing, it should also be noted that short cuts and retractions should be light, and the removal of large branches should be minimized. Pruning during the growth period is mainly used on juvenile trees. The period should be suitable. The method should be flexible and the purpose should be clear. The old and weak trees leave more leaves in the growing season, so that they can make detailed and reasonable thinning and fruit thinning, and set production according to the situation. Pruning at the growing stage is a supplement to pruning at the dormant period of the tree. Rationalization and adjustment are the guarantee measures for continuing to cultivate the backbone branches, balancing the tree vigor, and regulating the relationship between growth and results. From the purpose of pruning, that is to consolidate the effect of dormancy trimming last year, but also to prepare and lay the foundation for the next winter cut. According to the pruning season and the content can be divided into spring shear, summer shear and autumn cut at three different periods.
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