A method for renewing and pruning four or six main branches of densely planted pear trees

Abstract

The invention discloses a close-planted pear tree four-six main branch updating pruning method. The pruning method comprises the steps that pear trees growing for one year are selected, bud notching is carried out on the trunks of the pear trees in Spring of the next year, and thus the pear trees can grow a first batch of shoots; angle opening treatment is carried out on the first batch of shoots; in the third year, extending branches on the trunks are subjected to bud notching to grow a second batch of shoots, and the second batch of shoots are subjected to angle opening treatment; in Spring of the fourth year, 6 main branches are selected, bud notching is carried out on the base parts of the 6 main branches to grow preparation branches, the main branches subjected to bud notching are pruned off in Winter of the same year, and the preparation branches are preserved; main branches which are not subjected to bud notching on the trunks of the pear trees are selected in Spring each year from the fifth year, the operation is repeated until all the main branches on the trunks of the pear trees grow preparation branches, and the next round is carried out on the preparation branches. The close-planted pear tree four-six main branch updating pruning method has the advantages that the ventilation and light transmittance of the pear trees are good, the branches of the pear trees are kept young and have vigorous vitality, the capability of disease and pest damage resistance, and stable yield and high yield maintaining are achieved, and the number of years with high yields is large.

Description

technical field [0001] The invention relates to a method for pruning fruit trees, in particular to a method for pruning four or six main branches of densely planted pear trees for improving the fruit yield and quality of pear trees. Background technique [0002] Pear trees belong to the genus Pyrus in the family Rosaceae. They are perennial deciduous fruit trees. The lifespan of pear trees is relatively long, which can reach more than 100 years. The results are relatively early and the fruiting period is long. Some varieties begin to bear fruit in 2-3 years, and the full fruiting period can last for 50 years. above. The tree structure of pear trees in the full fruit stage is basically stable. With the growth of tree age and the continuous increase of branching levels, the main branches gradually become thicker, and the number of branches further increases. Closed phenomenon, which in turn causes the weakening of the inner chamber branch group. In conventional pruning, the ...

AI Technical Summary

Problems solved by technology

In conventional pruning, the weak branches in the inner chamber and the strong branches in the periphery are usually thinned out, and the middle branches are kept, which will cause the fruiting part to move outward, and the growth and fruiting advantages of the middle branches will gradually decline with the growth of the age of the branches, and the resulting fruit The fruit is relatively small, the quality is poor, and there are many diseases