1, long tip pruning method
Long shoot pruning is a pruning method carried out on the main vine. Usually pruning 6- 12 buds is generally suitable for healthy fruit branches that are not easy to get sick. After pruning, the prepared branches should be preserved and updated once a year. In addition, the main vines and perennial branches also need to be trimmed with long tips.
2, in the pruning method
Intermediate pruning refers to pruning the missing parts to increase the number of branches and leaves and occupy space. Generally, 3-5 buds are pruned. Intermediate pruning can be used to grow common grape varieties. It can effectively prevent the fruiting part from bulging, thus improving the yield and quality of grape fruit.
3, short tip pruning method
Short pruning method is to prune new young trees into flat stubble, generally pruning 2-3 buds. This can promote the uniform distribution of lateral branches of trees and is conducive to the overall growth.
Matters needing attention in grape pruning
The requirement of grape cutting is flat and smooth, and no stubble can be left. The thickness of the incision should be controlled in the range of 1-2 cm to avoid air drying of the winter buds. In order to protect the wound, you can use wound protectant or apply white latex to cover the wound.
For grapes with large branches, it is necessary to prune them into short branches to prevent freezing injury. In the second year, short piles can be removed. In addition, it is necessary to avoid hand injuries, so as not to cause damage to the tree, which will cause damage in the second season and lead to tree weakness.
Be sure to understand the habits of grape varieties and distinguish the pruning methods of different varieties. How many buds to leave, we must consider the yield per unit area, pay attention to the fruit quality of single fruit weight, and not have too many branches and buds.