Time
It was carried out from December after the pear leaves fell in the current year to before the germination of the second year p>
Method
Firstly, according to the growth characteristics of pear trees with obvious advantages at the top, strong germination ability, weak branching ability and mainly bearing short fruit branches, older and weaker trees should be heavily pruned, while younger and prosperous trees should be lightly or directly cut. Secondly, look at tree pruning and adopt different pruning methods for different types of branches p>
Main branch, sub main branch or other extension branch
The angle of the main branch can be opened by supporting, pulling, hanging and other methods p>
Branch group bearing fruit in successive years
Keep strong branch groups, cut weak ones and update them in time. It is necessary to specially trim the branches with too many flower buds and short and weak growth of new shoots. Properly short and thinly cut the dense and weak branches. When the branch group is generally weak, it is necessary to retract and renew more seriously p>
Spreading and raising branches
There is excess space in the tree crown, especially for the empty space between the backbone branches, the laying and raising branches should be retained as much as possible, and the methods of annual branches, no cutting in the first year and short cutting of flower buds in the second year can also be retracted after fruit bearing. If it has an impact on the growth of bone trunk branches, measures such as increasing the angle, removing the straight and retaining the oblique, removing the strong and retaining the weak, and releasing the results slowly can be taken p>
Fruit platform and short fruit branch
Pear trees often have about 1-3 secondary shoots on the fruit platform. Generally, when pruning, one can be kept short or one can be spared. The pruning of short fruit branches needs to determine how many short fruit branches to retain according to the burden of the whole plant, and drain the excess. If the tree potential is weak, it also needs to drain the weak branches and weak buds. In addition, foliage and branches are suitable to keep strong and eliminate weak, and remove dead branches, dense branches, weak branches, pest branches and so on p>