Reasonable pruning of grapes in the winter can make reasonable canopies in the canopy and prevent the outward movement of the resulting parts, which lays a foundation for stable production and high yield of grapes. The winter cut time grape winter cut should generally be carried out in late November to late January the following year. Pruning too early will affect the accumulation of nutrients in the tree; if it is delayed until the spring pruning, it will be too heavy due to “injury flow†and weaken the tree vigor. After one year of growth, the pruned grapes of the main and side vines are scattered and scattered. When the winter shears are cut, the main and side vines are selected according to a spacing of 50-60 cm. Mature vines, cross-over overlapping vines are all cut off, but the excision should not be made too close to the main vine so as not to affect the culm transport nutrients after shearing. Wherever the branches are too long, they must be trimmed and trimmed so that the main and lateral vines are evenly distributed on the plane. As a result, the trimming of the annual dendrite by the trimming of the female vines should be differentiated according to the location of the dominant buds, the growth potential, and the thickness of the vines. The advantages and the thickness of the branches are different. The vegetative buds between the 3rd and 3rd buds should be pruned with medium and short shoots, ie 2-7 buds should be trimmed; the dominant buds should be trimmed after leaving the 8 buds with 8-12 buds. The dendrite growth potential is not strong, the polarity is not obvious, mainly in the middle, long-tip pruning, can leave 12 buds; dendrite growth potential, polarity is obvious, in order to not move the result site, to avoid causing lower bald , It is advisable to prune mainly with short shoots, leaving 2-7 shoots. Cut off the strong branch with a thickness of 1 cm or more, trim the length of the shoot, leave 8-12 buds, and cut a thick branch of 0.7-1 cm, trimmed with many shoots, leaving 4-7 buds. Cut off the branches with a thickness of 0.6 cm or less, and take short tips for trimming, leaving 2-4 buds or removing them. Results The rationality of whether or not the amount of mother leaves is directly related to the level of grape production. As a result, there are too many mother-bearing branches and the spikes will exceed the load capacity of the plants, which will not only reduce the quality of the grapes, but also affect the yield in the coming year; as a result, too few mother-branches produce low yields. Therefore, the pruning must be based on the same year that the plant can achieve both high quality and high yields, but it can also produce robust mother trees. Results The amount of mother shoots can generally be calculated by the following formula: The result of the single plant is the mother plantlet = expected per plant yield (1+20%) (The mean average fruit weight of the ear is the result of the number of fruit spikes and the average number of fruiting branches of the mother tree). Source: "Rural Information News" China Agriculture Network Editor
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