Because of the grape in the early spring, there is a phenomenon of injury. For this reason, in areas where burial and cold protection are required, the plastic trimming of the grapes should be carried out before the burial, but in the production, the winter shears often cause adverse effects on the trees, so the grape winter The scissors should pay attention to the following points:

Protect the cut buds. Cut at 3~4 cm on the cut bud. If the internode is short, cut it in the first section of the cut bud. The cut should be smooth to prevent rupture so as not to affect the germination of the buds.

Leave short branches when sparse branches. Branchlets can be removed from the base, and short piles should be left when the branches are sparse, and short piles should be cut in the second year. At the same time, avoid wound contiguous, so as not to affect the smooth flow of the grooming tissue.

Avoid mouth injuries. When spawning on the main vine, try to avoid causing a mouth injury.

Reasonably determine the length of the cut. The length of the cut must be fully mature, and the space should be long enough to keep the frame as soon as possible. The varieties with high growth rate and low buds at the base should be trimmed with medium and long shoots, and the growth is moderate or weak. The varieties with high bud rate of base buds should be trimmed with medium and short shoots.

Branch group update. If a single branch is used, the winter shear is a short-cut pruning of the resulting female branch, leaving no preliminary branches. In the second year, in the new branch of the resulting female branch, the upper result, the lower inflorescence is used as the preparatory branch. When the winter shears, the resulting branches are removed, and the prepared branches are trimmed. If the branch is updated, each result part leaves a result of the mother branch and the upper part of a reserve branch is still trimmed by the middle and long ends, and the lower branch is left short of 2~3 buds.

Pay attention to the perennial branches. For the apex of the apex, the perennial vines with better results at the back end are retracted to the strong growing branches; for the pedigrees with good branches and the bare annual perennial vines, the vines are renewed and the new plants are cultivated; Weak perennial vines. If there is still the ability to produce results, when the base is not replaced by the bud, it can be used with the short branch of the old vine and the straight vines to help the weak vines to strengthen and Balance the tree; for the perennial vines, if there is no result Ability should be completely removed.

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