Strong seedlings are required, and the height of seedlings is about 1 m. The stem should be high, generally 60 ~ 70 cm. In order to prevent the concentrated new shoots from being cut off, after germination, some over-dense new shoots are deducted or treated (wiped, picked or twisted). Before sprouting, according to the position of the main shoot, make double cut (two deep cuts) or A-shaped cut on the new shoot to promote long branches and widen the branching distance of the main shoot, which is called "high-fixed branch and low-cut branch", and 3 ~ 5 branches can be produced in that year. If it is a strong seedling, the height is above 100 ~ 120 cm, the quality of the garden is high, and the seedling stage is short, so it is not necessary to dry after planting. Make the required main branches completely by positioning double buds, and adjust them properly in summer. If the quality of seedlings is poor and the seedlings are weak, it is necessary to carry out heavy and short cuttings. When the new shoots grow to more than 80 cm in the first year after re-emergence, the core should be picked to promote the secondary branches to become the main branches.
In order to cultivate the tree shape as soon as possible, promote the new shoots in the lower part and maintain the advantage of the central trunk, combine with summer pruning to eliminate the over-dense new shoots in time, and select 2 ~ 3 over-strong new shoots (15 ~ 20 cm long) in the upper part to inhibit the vigorous growth of their new shoots, control the upper part to promote the lower part and balance the strength.
Two years later, the slow seedling stage has passed and the middle trunk is generally strong. In order to prevent the main branches from falling off the central trunk, the middle trunk should be cut to 40-50 cm long, and the lower part should be selected in the right direction for double bud and bud promotion, and the cut competitive branches should be controlled. When the upper buds are too strong, control their growth by removing the core or cutting them short in summer. When the strength of the central trunk is moderate, it can be not short, and buds can be selectively carved in autumn and spring at the hair branches to solve the layout problem of the main branches.
For the main branch, it is basically not short cut or light short cut in the early stage, and it extends uniaxial and gently. When the power is unbalanced, appropriate adjustments can be made. The main branches of Wang Tai can germinate before germination, so as to promote short branches and prevent baldness at the lower part. For the cultivation of the main branch group, the young tree stage focuses on both sides and the lower back, while the upper branch group on the back is shorter and has fewer branches. Combined with pruning in summer, smooth the redundant buds on the back in time. Generally, choose a bud 20 ~ 30 cm. When the reserved buds grow to 15 ~ 20 cm, smooth or twist the top to cultivate small fruit branches in time.
After 3 ~ 4 years, the crown of the tree is basically formed, and the erect, overgrown, oversized and dense branches should be removed in time to maintain the advantage of the central trunk. The main branches should be stretched and opened to relieve the strength. When the extension branch of the main branch is too long or too large, it should be retracted, updated or removed in time; When the angle of the main branch is small, it is necessary to continue to pull the branch, mainly with slow release and light cutting, combined with summer management (bare tip, twisted tip, coring, etc. ), and cultivate the intermediate fruiting branches in time, and the upper branches of the main branches should not be too dense. Generally, it is appropriate to leave about 1 0 twigs in the range of1m, and remove the redundant twigs in time. Unblock the competing branches of the central trunk and the branches with too dense extension heads of the main branches, and keep uniaxial extension to prevent the upper and outer parts from being overstressed.