1. light cutting and slow release: light cutting and slow release, slow release year after year, and single head extension are the basic methods for pruning and relaxing tree potential. This method is easy to make branches accumulate nutrients and form flower buds. After trimming, the trimming mouth should be coated with calluses in time to protect the wound from rapid healing and isolate virus infection. 2. Big branches are sparse and small branches are dense: Shaguo trees should grow well, remove big branches to solve the lighting problem and leave small branches bearing fruit, so as to achieve the effect of "big branches are bright and small branches are noisy". The upper branch is sparse, the lower branch is dense, the outer branch is sparse and the middle branch is dense, and the lumen should be empty. 3. Advantages of upright maintenance: when pruning, the central trunk should always grow vigorously. When it reaches a certain height, it can be leveled and bent to press the crown with fruit. 4. Pull out the flourishing branches and shrink the weak branches: the branches that grow vigorously in desert fruit trees should be pulled out to promote their sprouting medium and short branches, laying a foundation for the transformation from vegetative growth to reproductive growth. For some branches that are too weak, it is necessary to retract them in time to keep the trees growing, so that they can stay empty, shrink empty and have nowhere to go, and be dense and sparse, so that the trees can grow well.

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