1. Chemical control: The so-called chemical control means spraying growth retardants, such as paclobutrazol and chlormequat chloride. At the peak of fruit tree growth, it is diluted and sprayed directly on the leaves. Spraying for two or three times can make branches thicker, internodes shorter and plants shorter.

2. Crown pruning: Pruning should be carried out in time according to the growth of fruit trees in summer, mainly including core removal, branch pulling, branch twisting and bud smearing. , can promote the nutrient supply of branches and fruits, promote flower bud differentiation, control types and promote fruit tree dwarfing.

3. Ring stripping: If the fruit tree grows for one year, you can peel off a few centimeters near the trunk by ring stripping, then peel off the short rootstock of the same size and stick it on it, and finally wrap it up. In addition, after the fruit tree blooms, girdle the trunk for 4-5cm, then stick the stripped bark on it and finally wrap it. This treatment can also achieve the purpose of dwarfing.

4. Multi-cutting: cut several holes on the trunk of the fruit tree every 0.3 cm with a knife. When potted, cut off its main root, keep 4-5 lateral roots, then make the root neck of the fruit tree higher than the pot edge, and finally bury all the roots in the soil, which can also prevent the fruit tree from growing too high.