Generally, it is carried out in the first ten days of August and September. For the selection of rootstock, it is better to choose the 4-5-year-old plants with robust growth, and the diameter of stem can reach 2-3cm. Cut off the branches under some branches at the base of the stem, keep only one branch, and then cut down some cortex. Then select the annual branches in spring and autumn as scions, with a length of about 5-7 cm. The thickness is roughly the same as that of the rootstock. Also cut off the cortex below, and then lean the cutting surface of the rootstock against the cutting surface of the scion, which fits tightly. The middle part is bound with plastic film, large. It will heal in about a week. After that, you can cut off the stock part above the joint
In the first ten days and the middle ten days of March, select the rootstock at 5-7cm above the ground, cut flat and cut well with the aid of grafting knife, select the smooth part with a little wood as the oblique section, with a depth of about 1-1.5cm. Keep 2-3 bud scions, and cut the lower end into wedges, about 1-1.5cm long. After that, one side of the cutting edge of the rootstock shall be aligned with the cutting skin of the scion, which shall be inserted into the cutting edge of the rootstock closely, and then tied up with a plastic film. After about half a month, it will be able to heal and sprout. Then we need to loosen the soil and weed. After 45-60 days, when you start to shoot, you need to remove the bandage, or the new shoot will be easy to bend.
