Grapes result in female winter cutting techniques

The winter pruning time of grapes is generally appropriate from early November to mid February of the following year, that is, 3-4 weeks after the fall of leaves, and 3-4 weeks before the occurrence of injury in spring. Pruning prematurely will affect the backflow of nutrients, and too late will be prone to injury. Injuries often affect the germination of the bud, affecting growth and results. Now mainly introduces the processing method when the grapes result in female winter cutting.

First, clipping length trimming should generally be selected to leave the branches and vines full of growth, good maturity, appropriate parts, no pests, no residual injury of dendrite, requiring 1-1.5 cm cut at 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). In the specific pruning should also take into account the grape varieties, dendrite growth strength and shaping methods and other differences. For example, rosettes are trimmed with short shoots, and the fruit setting rate is high, and the ear is more compact and uniform. While Kyoho and Longan grapes have higher flowering nodes, it is advisable to use pruning methods based on shoots and shoots.

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; The vine fan-shaped pruning mainly consists of pruning of long shoots, middle tips, or long shoots, middle shoots, and short shoots. Long dry pruning is dominated by short shoots; short shoots are used in areas where the soil is thin, fertilizer, and drought are insufficient. Prune mainly. 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.

Second, the number of clipped grape winter pruning in addition to a clear length of the cut, it should also consider the results of the number of female vines. 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. This will not only ensure the completion of the production plan, but also enable the plants to grow robustly and produce high yields year after year. The average yield of a high yield garden is about 1,000 sticks per acre. 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.

Third, cut the location and direction of the grapes The results of the grape vines larger pith, the organization is loose, easy to evaporate the water, so pruning cut should be 2-4 cm away from the bud eye, to prevent evaporation of water evaporation buds caused by dry branches; The mouth should try to choose the side opposite to the clipping buds.

Fourth, after cutting grapevine winter shear, combined with scaffold maintenance, the results of the upward growth of the parent branch pull into a horizontal direction, which can promote the bud of the base germination of new vines, more results. The litters, rotten fruits, and intercroppings that have been trimmed should be removed from the garden and burned.

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