Grapes result in the trimming of the mother branch with the length and length of the tip, leaving 2 to 4 knots for pruning, pruning about 6 knots for the tip, and about 10 knots for trimming. 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-setting rate is high in the 4th-7th section, and the seed-setting rate is lower in the subsequent period. The pruning method based on the middle and long shoots can be used.
Clipping length: When trimming, the vine should be selected for full growth, good maturity, proper site, no pests, and no broken vines. It is required to cut at 1 to 1.5 cm on the bud. The length of branching is usually based on how many buds remain. Generally divided into short tip pruning (1 to 4 knots on the result mother), pruning in the tip (cut 5 to 7 knots), pruning in the long tip (more than 8 knots) and mixed pruning (long tip, middle tip, Short tip trim). In the specific pruning should also take into account the grape varieties, dendrite growth strength and shaping methods and other differences. Under the same conditions, all thick and well-groomed shoots should be maintained for a long period of time. The flower buds in the lower part of the weak branches should be well differentiated. Short cuts should be appropriate; extensions should be kept for a long time, and the preparations should be shortened; Mang-shaped fan-shaped pruning is mainly used for pruning long shoots, middle tips or mixed shoots, middle shoots and short shoots. Long dry pruning is mainly done with short shoot pruning; growth-promoting and low-basic shoots with low seed setting rate are suitable for medium long shoots. Pruning, moderate growth or weak growth, and high shoot-to-base varieties should be used for mid- and short-tail pruning.
In short, the method of pruning different dendrites on a certain plant or plant should be flexible, or the method of pruning mixed shoots, shoots and shoots should be applied so as to obtain a good production effect.
Number of cuts: In addition to the length of the cut, the winter pruning of the grapes should also take into account the number of cuts of the resulting females. If the number of female vines is small, the output will be affected by shortage of vines in the following year. If the amount of vines is too small, the vines will be crowded, the load will be large, the light will be insufficient, and the phenomenon of serious fruit drop will also affect the wintering. And the annual output.
Therefore, the length and quantity of winter pruning should be determined according to the management level of variety, soil, fertilizer, water, etc., according to 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. The arrangement of the result branches must be uniform, and attention should be paid to the preparation of branches, and the adoption of the two-branch updating method or the single-branch updating method should maintain the growth potential and rotation results of the branches, so as to ensure stable and continuous production.
Cutting position and direction: The grape results in a larger pith part of the vine. The tissue is looser and the water evaporates easily. Therefore, the cut should be 2 to 4 cm away from the buds to avoid the evaporation of water in the buds and the dry branches. Try to choose the side opposite to the clipping buds. Clipping should be smooth to prevent cracking, so as not to affect the germination of buds.
Post-cutting treatment: After grapevine cutting, it is necessary to combine the maintenance of 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.
Disposable Gowns,Anti Slip Overboots,Industrial Work Aprons,Personal Protective Equipment
Taizhou huangyan Yiman industry & trade limited , https://www.yimancoverall.com