Apricot trees like light very much. No matter which tree type is adopted, there should not be too many main branches, and the number of layers should be large, so as to improve ventilation conditions and improve the utilization rate of light energy. Let's talk about the best shape of apricot trees and the principles and methods of apricot tree pruning for reference.

1. What is the best shape of apricot?

Apricot trees can generally be divided into four types: natural round head shape, evacuation layered shape, natural joy shape and delayed joy shape. Trees commonly used in production have natural round heads and evacuation layers. Here is a brief introduction:

(1) Natural round-headed apricot trees have no central trunk, and 5-6 main branches are scattered on the trunk. The base of the main branch is 45 -50 degrees from the trunk, and 2-3 lateral branches can be planted on each main branch. The natural round head shape has the advantages of small pruning, quick molding and high yield, and is suitable for upright varieties, such as Dahongpao and Daughter-in-law Apricot.

(2) The central trunk of apricot tree has 8-9 main branches, including 3-4 in the first layer, 2-3 in the second layer and 1-2 in the third layer. The spacing between the second layer and the first layer is 80- 100 cm, and the spacing between the third layer and the second layer is 60-70 cm.

Vacuum layered trees have the advantages of good illumination, hard cavity, high yield and long life, and are suitable for varieties with strong tree potential and openness, such as red branchlets.

Second, the principles that apricot pruning should adhere to.

1. Pruning due to trees: Different varieties and ages of apricot trees need to adopt different methods according to the specific conditions of apricot branches in order to achieve the expected purpose.

2. Overall consideration should be made: Whether pruning is reasonable or not has certain influence on the early and premature growth of young apricot trees, the high and stable yield of trees in full fruit period and the formation of high-quality fruits. Therefore, we must make overall plans and consider all aspects.

3. Tree vigor should be balanced: on the same apricot tree, the growth vigor of the main branches of the same layer must be basically the same to prevent the imbalance between strength and weakness. When pruning, the subordinate branches must make way for the main branches, so that the backbone branches at all levels can maintain a clear master-slave relationship.

4. Combination of light and important: according to actual needs, light and heavy can be combined when pruning. However, appropriate methods are necessary to reflect the characteristics of apricot trees.

Three, apricot trees of different ages in winter pruning points

1, pruning in young trees. The extension branches of the main lateral branches should be cut short, so as to expand the crown quickly and occupy space. According to the requirements of the tree, arrange the main branches and keep the master-slave relationship, and slow down other branches to facilitate early fruit.

2. Prune in full fruit. Pruning amount can be appropriately increased after apricot enters the full fruit period to prevent the fruit from moving out. Don't thin the branches easily, but use the method of retraction and short cutting to promote the growth of branches, which is conducive to the formation of flower buds.

3. Pruning during aging. Pay attention to the renewal of backbone branches and fruiting branches and the utilization of long branches.