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Chestnut classification pruning method
1. Sapling winter cut. Chestnut trees are very happy and therefore require natural round-shaped or naturally open-framed tree structures that grow into low-dry, medium-crown, low-main, less-lateral, and multi-branched branches. During winter cutting, the extension sticks of the selected branches at various levels shall be appropriately shortened, and all the delicate branches and individual competition branches shall be removed to leave the immobility so that the top buds can extend outwards and expand the canopy. 2. The result is tree winter cut. It should achieve good ventilation and light transmission in the crown, maintain the coordination of growth and results, and achieve high yield and quality. When the canopies have contacted each other, the branches should be retracted in time to maintain a certain space between the big branches. When there is a large gap between the canopies, the branches should be appropriately shortened; after clipping, the canopy projection of each chestnut tree should retain 8 to 15 strong mother branches, and the remaining mother branches should be re-shortened. 3. Winter tree of aging tree. In order to rejuvenate the tree potential and restore the ability of the results, the main method is to use deflation as the scaling method. To eliminate the vigorous and erect leggy branches and delicate branches, so that the nutrients are used centrally, the branches with sagging front end must pay attention to the appropriate part of the retraction, in order to promote the ability to leave the branches rejuvenate and restore results. 4. Let the winter shears of the tree fall. This kind of tree stems were born or overlapped. The result was that the branches were more on the periphery of the crown, and the branches within the crown were weak and dead. During winter cutting, it is necessary to confirm the retention of the backbone branches and remove the redundant branches; for the cross branches within the crown and the weakened branches of the front end, the retraction should be carried out, and the delicate branches and the dense mother branches must be removed.