Grapes result in the pruning of the mother branches with the length and length of the shoots. The pruning of the short shoots leaves 2-4 knots, and the trimming of the shoots is left around 6 knots, and the pruning of the long tips is left around 10 knots. According to the quality, branch thickness maturity, pruning form, fertilizer and water conditions and management level to determine the length of stay. Generally, the seed-bearing rate is higher in the 4-7 sections, and the seed-setting rate is lower afterwards. The pruning method based on the middle and long shoots can be used.
Clipping length trimming requires a cut of 1-1.5 cm on the bud. The length of branching is usually based on how many buds remain. Generally divided into short tip pruning (for the results of the mother branches left 1-4), the middle tip pruning (remove 5-7 section), long tip pruning (more than 8 knots) and mixed pruning (long tip, in the tip, Short tip trim). Under the same conditions, all thick and well-fed branches should be kept for a long period of time. The flower buds in the lower part of the weak branches should be well differentiated and should be cut short; the extension should be long and the length of the branches should be short; In the fan-shaped pruning, the pruning of the long shoots, the middle tips or the long shoots, the middle tips, and the short shoots are mainly combined. The pruning of the long dry pruning is mainly based on the pruning of the short shoots; the varieties with the growing growth and the low rate of the root shoots are suitable for the medium long shoots. Pruning; moderate or weak growth, the high rate of base buds varieties should adopt medium and short tip pruning. In short, the method of pruning different branches on a certain plant or plant should be flexible, or the method of pruning mixed shoots, shoots, and shoots should be applied in order to receive good results.
If the number of cuts is small, if the number of females is small, the output will be affected by the shortage of shoots in the following year. If the amount of cuts is excessive, the branches will be crowded, the load will be large, the light will be insufficient, and the fruit drop will be serious. Will affect the winter and the following year. Therefore, the length and quantity of winter shear should be determined according to the management level of varieties, soil and fertilizer, and the number of planned outputs, the total number of mother branches that should be left in the whole garden, and the number of resulting mother trees that each should leave.
Cutting position and direction of the grape The result is that the vine of the vine is larger, the tissue is looser, and the moisture evaporates easily. Therefore, the clipping should be 2-4 cm away from the bud when cutting, to prevent evaporation of the water in the bud and causing the dry branches to increase; Try to choose the side opposite the clipping buds. Clipping should be smooth to prevent cracking, so as not to affect the germination of buds.
After shearing the grapevine, it is necessary to combine the maintenance of the scaffolds and pull the upwardly growing parental branches into a horizontal direction, which can promote the emergence of new vines and multiple results in the buds of the base. We must remove the litter, rotting fruit, etc. under pruning and concentrate on it.
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