1, winter pruning, the main pruning methods are short cutting, dewatering, inward shrinkage and slow release, pear branches are mostly upright, and it is appropriate to use internal buds or double buds to turn the main head and open the angle, among which short cutting, dewatering and inward shrinkage are the same as other fruit trees.

(1): Slow release: Also known as throwing release or long release, even if the annual branches are not pruned, slow release can slow down the growth potential, increase the short and middle branches, which is powerful for nutrient accumulation, promote the thickening of branches, slow down the vigorous branches and turn them into flower buds. Young trees can bear fruit early and slow down oblique branches.

(2) Extrapolation of fruit buds or double buds refers to pruning the extension branches in winter to make the cut buds grow upright, and the second bud or third bud is the bud in the extension direction required by the plastic branches. The buds cut in the second year are upright and luxuriant, forcing the branches of the second bud or third bud to spread obliquely. In winter, the branches of the second bud or third branch are cut off as extension branches. This method is called Li Li.

(3) Turn the main branch and change the head: by the method of retraction and pruning, the perennial back branch with an angle, that is, the branch under the main branch, will replace the main branch to extend outwards, or use the branch on the back, that is, the branch on the main branch, to narrow the angle to the left and right or change it to the required extension direction.

2. Summer pruning, also known as growth pruning, has a great inhibitory effect on the growth of trees in the growth period and is sensitive to the reaction, so pruning should generally be lightly cut. The method comprises bud smearing, bud removing, core removing, twig cutting, ring cutting, branch pulling and branch hanging.