What are the pruning methods for growing blueberries?

What are the pruning methods for growing blueberries? When is the best time to trim blueberries? Also ask experienced friends to introduce the pruning of blueberries by varieties, which are divided into high-clump blueberries and dwarf blueberries. The following farming network is listed in detail for netizens' reference. 1. Pruning methods of tall clump blueberries 1. Pruning methods of young blueberries: young trees generally remove flower buds, in order to expand the crown, increase the number of branches and promote root development. The weak and small branches were thinned in the spring of the second and third year after planting, and the crown was still enlarged in the third and fourth year, but it could bear fruit in an appropriate amount. In general, the plant yield in the third year should be controlled below 1 kg, mainly with strong branches. 2. Pruning methods of adult blueberry trees: at this stage, pruning is mainly to control tree height, improve light conditions, mainly thinning branches, thinning dense branches, thin and weak branches, disease and insect branches and root tillers. The root potential of the open variety was weaker and stronger than that of the open variety, while the erect variety went to the central stem, opened the skylight and left the middle branch. The best fruiting age of big branch is 5 ~ 6 years old, which should be retracted and renewed in time. Weak twigs wipe off flower buds to make them strong. Adult trees have a large number of flowers, so it is necessary to cut off part of the flower buds, generally leaving 2-3 flower buds for each strong branch. 3. Pruning methods of old blueberry trees: generally, blueberries have been planted for about 25 years, and the aboveground part of the tree has aged and needs to be renewed, that is, all the aboveground parts will be sawed off close to the ground, and new branches will sprout from the base. 2. Pruning methods of dwarf variety blueberries 1. Fire method: that is, during the dormant period, all the aboveground parts are burned, new branches germinate again, flower buds are formed in the same year, and blossom and bear fruit in the next year. After that, it was cut by fire every 2 years, and the fruit of strong branches was maintained all the time. 2. Cutting method: before sprouting in early spring, the aboveground parts were cut off from the base of the plant, and the sawed branches were retained in the orchard, which could cover the soil and improve the organic matter. Click to get more strawberry planting techniques click to get more fruit planting techniques