1, pruning flower buds
Pruning flower buds at the seedling stage of blueberry can save nutrients for branches, expand the crown width of fruit trees, cut off thick and thin flower buds and keep strong flower buds, which is beneficial to improve the fruit setting rate and fruit quality of blueberry trees.
Step 2 cut off dead branches
Blueberry saplings are usually pruned in summer. At this time, it is necessary to prune the overgrown, dry and bent branches to strengthen the ventilation between the tree crowns and let the tiny branches inside receive sunlight. When pruning blueberry trees, prune them along the base of the branches.
3. Lighting conditions
Blueberries should be put in a ventilated place after pruning. If the light is strong, you can cover the upper part of the plant with a sunshade net to prevent strong light, and then provide a good lighting environment after the wound of blueberry tree scabs and heals.
4. Water and fertilizer management
After the blueberry tree is pruned, a fertilizer containing nitrogen, phosphorus and potassium should be applied to it to restore the growth of the plant, and the amount of watering should be controlled, and a small amount of water should be poured on the blueberry tree to avoid excessive water accumulation in the soil and the phenomenon of falling flowers and fruits of the blueberry tree.
Pruning in different periods
1, summer pruning
Its pruning is usually carried out in summer, especially before August. Cutting off branches that are too dense, damaged and dry can strengthen ventilation and light transmission, and promote the branches inside to see the light well. Just cut it along the bottom of the branch between pruning.
2, seedling pruning
Blueberry trees should prune flower buds at seedling stage to promote the growth of branches and expand the crown of fruit trees. It can also keep most nutrients in the roots, promote the better development of the roots, adjust the tree shape, and bear more fruits in the later stage.
3. Adult pruning
When the fruit tree grows up, it is necessary to prune the branches, control the height and increase the light receiving area. When pruning, cut off damaged, dense, morbid and sparse branches, leaving only strong branches, so that fruit trees grow more evenly and healthily.