Pruning techniques of Apple trees

Apple trees are a very resilient variety and can survive in cold climates. Apple trees have a period of dormancy every year, which lasts until the second month of the year. This time is the best time to prune the branches above the apple tree. There are also many tips when pruning.

Apple tree pruning techniques

1. If the apple tree grows too vigorously, the branch growth is dominant, which is not conducive to the formation of flower buds. When pruning, we should give priority to "slow", increase the branching angle of main branches, thin out the upper branch group on the back, keep more lateral and lower branch groups, extend the branches for long release, and adopt measures such as ring cutting on the main branches to control the transportation of nutrients and promote flowering.

2. If the apple tree grows too weak, it can be re-cut on the basis of fertilizer and water management to stimulate prosperity. Extended branches should be cut in the middle of the full bud, with strong branches taking the lead, gradually raising the extension angle, leaving less back branch group, leaving more back and both sides of the branch group.

3, such as apple tree branches on one side large, one side small, partial crown growth, one is in the lower branch sparse branches, in the upper part of the branchlet sparse flowers, the second is to pull a large branch angle, raise the branchlet angle. Large branches bear more fruit, branchlets bear less fruit. Big branch direction should be less fertilizer, branchlet direction more fertilizer, it is strictly prohibited to use the method of cutting large tree shape.

4. Some branches of apple trees are not cut year after year, often single axis extension, few branches, forming large sections of bald, poor flower formation performance of such branches, poor fruit growth and development, pruning, if there is space, should implement ring cutting, stimulate bud germination, or timely retraction, stimulate branches, cultivate good branch groups. If there is no space, it should be removed immediately to improve the ventilation and light transmission conditions of the tree body.

apple tree pruning

1. After planting, the full bud shall be determined, and the central leading trunk and main branch shall be shortened at the full bud to promote the flourishing branch. The rest of the branches are not cut slowly, and the branches below 1.0 meters on the trunk are thinned out.

2, according to the tree requirements, from more than 1.0 meters away from the ground, according to the spiral arrangement principle, according to the spacing of about 40 cm, select the branches with larger base angles and strong growth as permanent main branches, and support the promotion, accelerate the growth, and achieve the requirements of open heart skeleton.

3. Thinning competitive branches, dorsal branches, overdense branches, overlapping branches and diseased branches, cultivating lateral branches and drooping branches of main branches into drooping branch group to promote early fruiting.

4. Under the premise of not affecting the growth of backbone branches, temporary branches that are not selected as main branches should be retained as much as possible to promote the transformation of branches as soon as possible, form flower buds, and bear fruit as soon as possible.

Ten Mistakes in Apple Tree Pruning

1. The angle is not open, and the trees are pruned randomly.

2, the main pole can not be lifted, when the head does not fall.

3. There is no distinction between temporary and permanent branches.

4. The thickness is not adjusted, and the primary and secondary cannot be separated.

5, root branch imbalance, slow recovery of tree potential.

6, nutrition and fruit, pruning does not adjust branches.

7. New branches are taken every year, old branches stay every year.

8. Cut off all the branches on the back, leaving no holding branches.

9, weak branches are not rejuvenated, strong branches are not controlled.

10, see the branch back, never leave the original head.

Apple tree pruning precautions

1. Mainly light, simplified pruning, overall slow release, four seasons adjustment.

2. Comprehensive regulation and control according to tree conditions. Because winter pruning is a technical very strong, method and more flexible practical means of operation. However, in order to master and use them accurately: first of all, we must fully understand the pruning physiology of fruit trees, and correctly utilize the characteristics of branch phase law and branch bud heterogeneity of apples, and then adopt flexible pruning methods according to the site conditions, garden varieties, planting density, growth conditions and cultivation management level of different orchards, so as to achieve correct pruning and reasonable adjustment of potential.

3. Identify flower buds and trim them carefully. For the trees in the early stage of full fruiting, branch pruning must be carried out year after year, which can not only improve yield and quality, but also adapt to tree vigor and planned yield by controlling flower bud retention. Its effect is more obvious than thinning flowers and fruits. In addition, due to the sufficient preparation of branches and buds, it is possible to form sufficient flower buds at the same time of fruiting, which plays an extremely important role in preventing and eliminating the phenomenon of "big and small years".

Apple trees in the pruning time to do fine, accurate, fine several principles. The main purpose of apple tree pruning is to increase the economic life of apple trees. If the branches are messy, they will cover the fruits on the apple tree, and if they receive insufficient sunlight for a long time, they will affect their later taste.