The key to thickening the trunk by pruning peach trees is in the seedling modeling stage. The practice of thickening the branches that need to be thickened as soon as possible is summarized as follows:

1, cultivating a thick tree shape in the shaping stage; The growth characteristics of trees, rapid vertical transport of nutrients, have the top advantage, the closer to the vertical branches of the crown, the stronger the tree potential and the faster the growth rate than other branches. In order to cultivate a thick tree shape, the fixed stem should be high. Generally, the early maturity and high yield of peach trees are naturally gratifying, with a fixed stem of about 40cm, while the fixed stem of a thick tree can reach about 80cm. In order to make the trunk grow thicker, we should leave a strong central main branch and several main branches. All branches that need to grow thick should be trimmed with strong buds at two-thirds of the branches. Local stimulation can gain growth advantages, and robust buds can grow and thicken rapidly. However, the whole tree should be trimmed as little as possible, leaving fewer wounds, and the advantage is still at the top. Others are used as auxiliary branches to provide nutrition for the whole tree and promote the main branches to grow thick.

Second, in the tree pruning stage, the branches that need to grow thick will continue to be stimulated and pruned, and the robust branches and buds will keep their advantages and grow thick as soon as possible.

Third, strengthen field management, reasonably increase fertilizer, and realize balanced fertilization of nitrogen, phosphorus and potassium.

Fourth, control the results and squeeze all the flowers and fruits dry. Concentrate nutrition and plant trees.