The inlay bud grafting technique of the three main branches of peach is a method that the author has explored in the production practice for quick updating of peach varieties. Its advantage is that it was formed in the year of grafting, and the result of the leap year was very productive. The specific approach is: Do a good job of grafting rootstocks. For the perennial peach trees that need to be changed, after the spring sap flows, the three main branches are each retracted to 60 cm. The two side branches of each of the three main branches are retracted to 30 cm. The lateral branches and the main branch On the extension branch, select one or two year old oblique or upright branches to cut off 10 cm, as the rootstock of the graft, and cut all the remaining branches from the base. 2. grafting. The grafting site was selected at the smooth base of the rootstock, and the buds were connected to the outside of the rootstock. Sprouting buds should be selected from the mother tree growth, no pests and diseases, the growth of the periphery of the crown, and the rootstock thickness is basically the same long-medium fruiting branch flower buds. If the buds and rootstocks are not peeled, cut one knife from the 0.8cm above the bud, and then cut a knife upward about 0.6cm below the bud, and then take off the bud. On the rootstock, use the same method to cut a bud piece and insert the bud bud piece so that the buds are aligned with the rootstock forming layer and tightly tied with a plastic strip. Note that the rootstock cuttings must be longer than the buds 1 to 2 mm in order to facilitate the healing of the layer formation. When the plastic bar is wrapped around, the flower buds must be exposed to facilitate sprouting. 3. Strengthen post-grafting management. When budding germination is 10 cm long, 0.25 kg urea can be applied to the plant to promote its shoot growth. In August, 0.5 kg of compound fertilizer is applied to promote flower bud differentiation. China Agricultural Network Editor