2. Thinning: Thinning is an important method. Removing densely growing branches and cutting off cross branches and overlapping branches can reduce nutrient consumption and increase light transmittance.
3, cut short: winter is in a dormant period, cut short branches.
Extended data:
Key points of pruning and watering cherry trees:
1. Water before flowering. Before germination and flowering, water should be used to meet the water demand of spreading leaves and flowering. This kind of watering can reduce the ground temperature, prolong the flowering period, and sometimes avoid the harm of late frost.
2. The watering in the hardcore stage should be carried out on 10- 15 days after flowering. At this time, the big cherry grows most vigorously and is most sensitive to water supply. Water shortage will cause a large number of willow fruits with softening stones, and the average yield reduction of watering willow fruits is 38.7% compared with no watering.
3. Water before harvest. Watering once every 10- 15 days before harvesting has great influence on the yield and quality of big cherry. At this time, the fruit is expanding rapidly. If the fruit is not watered, it will not only have low yield, but also have poor quality. Watering before harvest will increase the yield by 20%-30% compared with no watering, but watering too late will delay the harvest time.
4. Water after harvest, and flower bud differentiation will be concentrated after fruit harvest. In order to restore the tree and ensure the normal differentiation of flower buds, topdressing and watering should be carried out. Better water less this time. The short-term drought after that is beneficial to the formation of flower buds.
5. Frozen water 10 should be watered once after applying base fertilizer. Enhance the wintering ability of trees.