1、 Pruning time
Southern grapes suggest pruning from 20 days after defoliation to 15 days before budding the next year. The pruning time should be well controlled, not too early or too late. Being too early will reduce its cold resistance and be unfavorable to the winter. It is easy to cause bleeding too late, which will weaken the tree potential and be unfavorable to germination. In addition, pay attention to the pruning method p>
2、 Pruning method
1. Short shoot pruning: leave two or three buds after pruning the current year's branches. Don't leave too many or not. Of course, it also depends on the variety. This method is suitable for European and American hybrid varieties, so that they can grow better in the later stage of treatment p>
2. Middle shoot pruning: after pruning, keep four to seven buds. This pruning method is suitable for those with high fruiting branch rate and medium growth potential, such as Victoria, ruby, red earth and other varieties p>
3. Long shoot pruning: when pruning, leave eight to eleven buds in the current year. This method is suitable for varieties with high flower bud setting position, low fruiting branch rate and vigorous growth. Such as Kerry or beauty finger p>
3、 Precautions
When pruning, pay attention that the cutting mouth should not be too close to the bud eye, otherwise it is easy to lose water at the cutting mouth and the bud eye is easy to dry up and die. It is suggested that the cut should be located above the middle of the two buds, or 2-4cm away from the bud eye p>