Traditional Culture Encyclopedia - The 24 Solar Terms - When are grapes pruned in winter in northern China?
When are grapes pruned in winter in northern China?
When pruning grapes in winter, we must control the time, neither too early nor too late, otherwise it will be unfavorable to the growth of the next year and will affect the storage of its nutrients.
The best time should be one month before the dormancy of vines. Pruning grapes at this time is beneficial to the germination and growth of grapes in the coming year. In addition, when pruning, it is necessary to prune the whole grape more than 1/3, which can increase the amount of nutrients stored in the grape and make it grow more vigorously in the coming year.
The northern winter grape pruning method is as follows:
1, the length of pruning should be judged according to the growth of each branch, the birth place of flower bud and the rate of bearing branches. Under the same conditions, the branches with good nutritional status should be kept long, and the weak branches with good flower buds should be appropriately cut short. In general, the extended branches should be kept long, and the retained branches should be cut short.
2. The cut tissue will be loose every time, and the water will evaporate easily. Therefore, the cut should be far away from the bud eye, about 2-4 cm away, to avoid excessive evaporation of water. In addition, the cutting position should be opposite to the bud.
3. When pruning, the amount of buds should be controlled well, not too dense or too sparse. In general, it should be twice as much as the amount of buds left in the next spring to ensure the later flowering and fruiting.
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