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Young apple tree main and lateral branches can be pulled in May, but it is best to pull branches in autumn. When branches are opened, a good canopy is formed with good ventilation and light transmission, which not only produces good flower buds, but also helps fruit growth and fruit coloring.
The young apple branches have a strong apical apex and grow more erect. 4 to 5 years old tree pruning should be based on the opening of the main branch base angle, the base angle should be opened to 60 ~ 70, 6 ~ 7 years old trees, to open the main branch waist angle, open waist angle to reach 70 ~ 80 . A tree with a side-branched tree, while opening the main branch angle, should also pay attention to the opening of the side branch angle. The tip of the main branch must be opened to about 60 degrees. The opening angle of the side branch should be larger than the opening angle of the main branch. The side branch should be lower than the main branch so as not to affect the opening angle of the main branch.
For the auxiliary branches to be flattened, on the competition branches, grow strong branches, leggy branches, in addition to the use of twist tip, topping, other branches and other methods, control prosperous, and promote its flower, it should also pay attention to pull branch open angle.
After the branches are pulled, the branches are prone to strips. If they are not processed in time, they will cause tree disorder and affect the results of the saplings. The take-off of spoils can be handled by the following measures.
1. The branches of young apple trees are more prosperous, and the baldness (non-issues) appears on the branches. The phenomenon is serious. In addition to taking care to eliminate the occurrence of fringes, measures should be taken to promote bare shoots and shoots.
2. It is not possible to make use of the oversized branches that have been remodeled. We must eliminate them so as not to affect the light.
3. If there is a space for growth and development, the strips that can be used can be modified to flatten them, change their direction of growth, and further transform them into fruiting branches or branches. Without prejudice to the growth of trunks and the ventilation and light transmission within the canopy, more temporary branches (branches) can be reserved for long-term deployment, and measures such as individual branches, topping, twisting, and girdling can be used to promote long-term deployment. Take a branch into a flower, germinate a short branch or cultivate into a result branch group, the result will be retracted later, and then need to eliminate and then wipe out.
Young apple tree autumn branches easy to crown
Most of the rows planted by apple trees are 35 meters or 34 meters. This kind of planting density of apple trees needs to cultivate good canopies, and in shaping and trimming work, it is very important to open branches and open angles.