Strong branches can be cut at intervals of 8 to 10 cm between each lane.
Ring stripping must be carried out during the active period of the formation of the tree, during which it can be peeled off and it is easy to tear off the bark of the strip strip. The new shoots stop growing until the second year of germination. During this time, the skin is not peeled off. In order to promote the formation of flower buds, ring stripping is best carried out during the physiological differentiation of flower buds, from late May to mid June in Beijing, Tianjin, Shandong and Hebei. The ring peeling from the germination to the flowering stage in spring is conducive to improving the fruit setting rate and is also conducive to flower bud differentiation; while the flower ring stripping is only beneficial to the effect of flower bud differentiation. Of course, any growth season ring stripping has an inhibitory effect on the growth of new shoots on the ring stripping. During the growing season, the rings are stripped early and the wounds heal slowly; the rings are stripped late, the temperature conditions are moderate, and the healing is fast.
Opening angle
Pulling branches: In the same year, the new shoots are pulled, preferably in the autumn, so that the base angle is 80-90; the second-year-old shoots are best carried out after spring germination. Not too thick branches, with double-stranded 12-gauge wire, a eucalyptus hook, a eucalyptus raft, the wooden structure pulls the branches, the raft hits the soil, the raft is firm, and it does not encounter irrigation and rainfall. When it breaks out of the ground, it does not hinder the operation of the orchard.
Bracing: When the winter shears, use the branches of other trees as the sticks, and the branches that are to be opened will be supported outwards. The sticks will stand at the center and support the branches. Both ends of the stick should be cut into a flat duck's mouth and avoid hurting the center and the branches. The second year should be withdrawn (not working).
Use the open angle clamp: the opening angle of the year, you can use the open angle clamp ("W" shape made of 8-10 wire) to keep the branches to be opened, and then remove the angle after fixing. This method is very simple and quick, and it is suitable for young shoots in young trees.
Falling branches: For the 1-2 year old branches, use the hanging shovel (can be made, use bricks, bricks, cast concrete blocks, etc.) to drop the branches, and prepare the hanging or loading of different sizes according to the pulling force of the branches. The plastic bag will fall in the middle and late May, and the opening effect will be achieved in the autumn. You can also change the hanging to another branch.
Lychee
Also known as taking the branch. For a certain period of time, repeat the measures of holding the tip of the branch from the bottom up and gradually moving the xylem without cracking the cortex. The lychee can change the angle and orientation of the shoots. The main object of lychee is to cultivate new shoots of auxiliary branches and spindle extension branches, and to extend new shoots beyond tree height or canopy. The new shoots are lychee in the middle and late August, which can promote the fullness or formation of alfalfa buds, and the middle, short and top flower buds of the next year. 1~2 years old branches in the middle and late May to early June and mid-August, two lychees, can make the branches and 1/3 of the branches of the year to form the top flower buds; in early June, early July And three lychee in early August; it can make more branches and 1/2 branches in the same year to form the top flower buds.
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