First, the role of pull branches: pull branches can promote early shoots of pear trees, more drawing; can make young trees early formation of the crown; can make full use of space and light energy; can inhibit the vegetative growth of trees, as soon as possible into reproductive growth, and eventually reach early The purpose of high yield. Second, pull the stick time: After the pear leaves fall in the fall to the second year before the spring sprout, can pull branches. Third, methods: 1. Annual tree: the year of planting the annual saplings, from the ground to stay at 40 to 50 cm to the line between the tree tip. The direction of the entire tulip tree tip should be basically the same. The degree of pull and bend should reach the level or 80 degrees. After releasing the rope in the second year, the natural curvature of the tree tip should be maintained at about 90 to 100 degrees. The main trunk of the young tree must be upright. 2. Biennial trees: After the first year of branching, many shoots are promoted. In the second year of pulling branches, in the first year of the bending of the branches, select a strong branch and keep 40 centimeters upward from the base to pull in the opposite direction and pull the other branches to the right and left. 3. Three-year-old and result tree: In the second year of the branch, select a strong branch from the base to stay 30 to 40 centimeters upwards, pull the branch in the opposite direction of the second year and pull the other branches to the right and left. In this way, the canopy of three layers and three to five main branches is formed. The height of the tree is generally controlled at about 2.5 meters. For a tree with more than three years, the dense branches, stem branches, and stems and branches of stems at the base and main branches should be cut first. For other upright vegetative branches, branches, branches, and branches are still handled to promote the early fruiting of the trees. In order to control the growth of the crown, the tree is pressed by the fruit. China Agricultural Network Editor