First, summer pruning
How to prune blueberry trees must first find a suitable pruning time. Pruning is usually carried out during the growing season of blueberry trees in summer. Before August, it is mainly to prune some dense, dry and damaged branches and adjust the shape of fruit trees to make them better exposed to the sun. Ensure enough space when pruning, which is more conducive to full sunshine and ventilation of fruit trees. Branches are trimmed directly along the bottom.
Second, flower bud pruning
The pruning method of flower buds is mainly aimed at blueberry trees in small seedling stage. The purpose is to increase the number of branches, expand the crown width of blueberry trees, and at the same time leave nutrients in the roots temporarily, so as to promote the development and expansion of roots and adjust the shape of their fruit trees.
Third, thinning and pruning
This pruning method is suitable for mature blueberry trees. The purpose is to control the height of trees and improve the light conditions of trees. Pruning those dense, diseased and damaged branches, in general, means removing those weak branches, leaving healthy and strong branches, so that fruit trees can grow in a balanced way.
Four, the old tree pruning
Generally, blueberry trees have been planted for about 20 years, and the branches hanging down or close to the ground are basically aging, so they need to be completely sawed off, so that the saws can sprout new branches close to the trunk and give the trees new life.
Pay attention to topdressing Woye amino acid water-soluble fertilizer after pruning to supplement nutrients.