How to prune northern grapes, pruning time in winter

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1. How to prune branches

2. Winter pruning time

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When pruning grapes, you should pay attention to the length of the pruning. The specific judgment should be based on the growth of each branch, the location of the flower buds and the rate of fruiting branches. Also pay attention to the pruning position. The cut should be far away from the bud eyes to prevent too much water from evaporating. In addition, the amount of remaining buds must also be controlled. It should not be too dense or too sparse. Normally, the amount of remaining buds should be twice that of the second spring, so as to ensure flowering and fruiting in the later period.

1. How to prune branches

1. How to prune

1. Pruning length: When pruning, the length to be cut should be judged based on the growth of each branch, the location of the flower buds and the rate of fruiting branches. If the conditions are the same, branches with good nutritional status should be left longer. If the flower buds on weak branches are well distributed, they should be shortened appropriately. Under normal circumstances, the extension branches should be left long and the preparation branches should be shortened. In addition, if the area is relatively dry or there is insufficient fertilizer and water, the main purpose is to prune the short shoots.

2. Trimming position: The tissue of each cut will be It is loose and the water is easily evaporated, so the cut should be farther away from the bud eyes, leaving a distance of about 2-4 cm to avoid too much water evaporation. In addition, the position of the cut should be on the opposite side to the bud.

3. Amount of buds left: The amount of buds left during pruning The quantity should be controlled well, not too dense or too sparse. Under normal circumstances, the number of remaining buds will be double that of the second spring. For example, 15-20 buds should be left on the new shoots on the fence surface, and 30-40 buds should be left during pruning in winter, so as to ensure flowering and fruiting in the later period.

2. Winter pruning time

When pruning grapes in winter, you must control the time well. You must not prune too early or too late, otherwise it will be detrimental to next year's growth and affect its ability to store nutrients. It is best to prune 30 days before entering the dormant period to the bleeding period, specifically between late October and mid-to-late November. If it is grown in a greenhouse, it should be done before covering.

2. Winter pruning time

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