What is the method for pruning grapes in winter?
The editor introduces you to the method of pruning grapes in winter, a green plant and flower introduction, let's understand it together.
What is the method for pruning grapes in winter?
Grapes are an important economic fruit tree in our country, with a long history of cultivation and are planted in many places across China. However, its cultivation also faces some problems, such as the issue of overwintering, where fruit farmers often adopt the method of pruning branches to get through. The main purpose of pruning grapes in winter is to maintain the tree shape, regulate the growth and fruiting of the tree, improve the ventilation of the plant, adjust the growth position of the parent branches, and update the fruiting branches. So, what is the method for pruning grapes in winter? And what are the precautions?
Winter Pruning Time
Grape winter pruning needs to cut off one-third to two-thirds of the branches and葡萄藤, so winter pruning should consider the nutrient loss of the grapevine after pruning. Early or late pruning will cause the loss of nutrients stored in grapes, which is not conducive to the germination, bud differentiation, and growth of new shoots in the following year. The best pruning time is when the tree is completely dormant to one month before the watery period. Winter pruning should be completed before the greenhouse is covered with plastic film. In the warm south, it should be done from late December to January; but in the relatively colder north, the best pruning time should be from late October to late November.
Winter Cutting Method
Based on the yield of the plant and the growth trend of the vines, determine the selection of fruiting branches and trees, and control the number of fruiting branches and trees per square meter; pruning should be carried out in the order of stem to vine, main to side, fruiting branches, thinning branches, reducing branches, and short branches. Specifically, in pruning and selection, choose one-year-old branches that are thick (over 0.8 cm) and productive as the fruiting parent branches. To reduce the multi-year-old branches, weak branches should be cut back, and strong branches should be left under the cut; when strong branches are cut back, medium branches should be left under the cut. Thinning should be done by completely cutting off from the base, taking care not to cut off too much to avoid affecting the growth and development of the bearing branches.
Pruning Techniques
Firstly, it is necessary to identify the mother branch. Only high-quality mother branches with a high germination rate, strong branching ability, and good bud differentiation in the second year can lay a solid foundation for high yield and quality in the following year. Therefore, mother branches with a deep color, fully mature vines, and a base stem thickness of 0.8-1.2 cm should be chosen. When pruning, the pruning length should be determined based on the growth potential, fruiting branch rate, and bud position. The pruning cut should be 2-4 cm away from the bud eye to prevent water evaporation from the bud eye, causing the branch to dry. The pruning cut should also be on the opposite side of the bud.
The above is the method and precautions for pruning grapes in winter, hoping it is helpful to you.
The above is a comprehensive explanation of the method for pruning grapes in winter, hoping it can act as a brick to attract jade and solve your green plant problems.