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The pruning of grapes is accomplished through winter pruning, summer pruning, and tying and tying. The most important part is winter pruning. The main technical points are: 1. Pruning time: winter pruning of grape vines It should be done from mid-December to mid-January. Pruning too early or late will affect its growth and results. Second, leave branch length: 1, according to the characteristics of the pruning: strong growth, vigorous growth of species, flower buds and higher distribution of nodes, so the branches should be longer cut off, leaving the shoot more than 8 buds; the, then stay Shoot 3 to 7 buds. For example, the growth of Kyoho and Other species is stronger, and the distribution and the node of flower buds are higher, so the cuttings of the branches should be longer. 2, according to the age of pruning: in the sapling pruning on a "light" word, the cultivation of the two main vines should be left shoot 20 to 25 buds or more, especially the Kyoho grape to use the secondary shoots as the result of the mother tree, the auxiliary shoot The mother shoots should leave 2 to 4 buds. If the tip is too thin, it should be removed from the base so as not to affect the sprouting of winter buds in the second year. If there is a growth of the main side of the rich tree, the growth potential of the tree is weakened, and the yield may be reduced. New vines may be selected as supplementary supporting branches (ie, ready-to-produce branches) in the vicinity. The old vines are compressed year by year until there are 1 to 2 years after auxiliary branches. When there is productive capacity, the old vine is cut off; the thick vines that are drawn after the result of the primordial fruit can continue to be the result of the mother twig shearing when the shelf space is large. If the shelf space is small, Branch retraction should be performed. Old and weak trees leave shoots of 3 to 6 buds. 3. Trimming according to the roughness of the branches and the fullness of the buds: In the first year of colonization, the tip thickness is 1 cm, the length of clipping is 100 cm, and if the tip thickness is 0.8 cm, the length is 80 cm, and so on. 4, according to the width of the rack to trim: the same species, thick branches and large rack space should be left long branches, 8 to 12 buds; branches short and thin, small rack space should be left short branches, 2 to 3 buds; 4 to 7 buds should be left between the two. The main tip of the shoot is left with 12 or more buds, and the newly cultivated main vine should also be left with 12 buds or more. After forming, the shoots should be left to grow with 8 to 12 shoots. The resulting shoots should use long (8 to 12 buds) and medium ( 4 to 7 buds) and short shoots (2 to 3 buds) were mixed and trimmed. Density, weakness, worms, or incompletely mature shoots should all be cut off. Fourth, pruning technology: 1, leaving branch standards: choose to stay good year branches, this new shoot is generally thick and round, small pith, short internodes, section protruding, branches are yellow-brown, red-brown. For long internodes and large piths, small long shoots and flat shoots with buds and eyelids should be sparse or cut short and should not be retained. 2, cut mouth location: grape pith part of the larger, more loose tissue, moisture is easy to evaporate, so the clip should be cut from the bud eye 2 to 4 cm, to prevent evaporation of moisture buds eye parts resulting in increased dry branches. 3, cut mouth direction: cut mouth to try to cut the opposite side of the bud. Fifth, after the cut work: After trimming, combined with scaffold maintenance, the results of the upward growth of the parent branch pull into a horizontal direction, this can promote the bud of the base germination of new vines, to achieve multiple results. The litters, rotten fruits, and inter-crop crops that have been trimmed are removed from the park and burnt in a centralized manner. For the orchard, the equivalent Bordeaux mixture with serious physiological disease can be disinfected and sterilized in the whole garden, or can be controlled by lime sulfur with Baume degree of 0.5-0.8 degrees. If there is no application of autumn fertilizer or "post-fertilizer" orchards should also be applied to organic fertilizer-based winter fertilizer, in order to improve resistance and increase tree vigor.