1. Cutting method: This method is widely used. When grafting, the rootstock is cut 5 ~ 7 cm from the ground, and the smooth side of the bark is selected, and the xylem is cut slightly vertically, with a depth of 2 ~ 3 cm; The scion can be cut into 2 ~ 3 cm long inclined plane at the lower end of the selected grafting branch, and then cut into a short section of about 1 cm on the reverse side, and 1 ~ 2 pairs of buds are reserved to cross the branches to form a complete scion. Note that the scion is not cut first, but the surface of the base is cut first and then cut, which is not only convenient for holding the scion branches and safe operation, but also convenient for selecting the ear buds and ensuring the quality of the grafted seedlings. Immediately after the scion is cut, stick the long section of * * * on the section of the rootstock and insert it into the cut of the rootstock properly. When inserting, the operation should be light, and the arc layers of the two sections of the rootstock and scion should be closely combined. Special attention should be paid to aligning the boundary between green cortex and white xylem on the section of rootstock and scion, so that the cambium can be naturally matched, which is the key to survival. If the scion is thinner than the rootstock, the scion should be inserted on one side of the rootstock, and at least one cambium on one side can be closely combined.

After the scion is inserted, the cut part of the rootstock is wrapped outside the scion, bound and fixed with plastic film adhesive tape, and the cut part of the rootstock and the top of the scion are sealed at the same time to prevent water evaporation. When binding, be careful not to let the joints move at all, so as to avoid dislocation of cambium and survival of video/sound grafting.

Abdominal grafting: this method is also widely used, and it is a branch grafting method without cutting the anvil crown. When graf, that rootstock is obliquely cut at an inclination angle of 20-30 degrees within the range of 3-5cm from the rootstock root neck, and the depth reach1/3-1/2 of the rootstock diameter; Then, both sides of the lower end of the scion branch are cut into inclined planes with the length of 1 ~ 2 cm, and 1 ~ 2 pairs of buds are reserved, which are cut and separated into scions. Then insert the cut scion into the incision of the rootstock, aim at the cambium on one side of the rootstock, and wrap the whole joint with plastic film tape.

The advantages of abdominal grafting method are: the requirements for rootstocks are not strict, and rootstocks that can not be used for cutting can be used as rootstocks for abdominal grafting; ; Simple operation and high work efficiency; The grafting position is low, easy to cultivate and beneficial to survival. Because abdominal grafting has more advantages than cutting grafting, it has been widely used to propagate osmanthus seedlings everywhere.

It has the following advantages: ① Grafting is feasible for a long time, from dormancy to growth and development for half a year. ② The utilization rate of rootstock is high, and it can be grafted once and then again in the same year.

3. Skin grafting method: This method has been widely used in recent years, which is suitable for the sap flow period of osmanthus fragrans growing season and convenient for rootstock peeling. The method is as follows: firstly, cut a 2-3 cm long bevel on the back of the scion bud at 1-2 cm, and then cut a small bevel about 0.6 cm long at the tip behind the bevel. In addition, cut off the rhizome at the position 1 ~ 2 cm from the ground, and scrape the section with a sharp knife. Select the smooth part of the rootstock skin, draw a knife vertically from top to bottom, and reach the xylem, with a length of about 1.5 cm. Pick the cortex from left to right along the knife edge with a knife tip, and connect the scion with the incision. If the scion is too thick to insert, you can also cut a triangular incision about 3 cm wide on the rootstock to facilitate the scion insertion. When inserting, the horse-ear slope should be close to the inside, and it should be light when inserting, so that the scion section is closely connected with the rootstock. After the scion is inserted, it is bound and fixed with plastic film tape.

4. Splitting method: Splitting, also known as cutting, is generally only used for grafting on thick osmanthus rootstocks or for high grafting. When grafting, the rootstock is sawed off to a certain height, and the cut surface is flattened; Then split vertically in the center of the cutting surface of the rootstock with a cleaver, and split into 4-5 cm deep cuts; Then insert the top of the back of the knife into the incision to make it open. The scion is selected from 2-year-old branches with 3-4 nodes and is about 10 cm long. The two sides of the branch are cut into equal wedges. Then, 2-4 scions are inserted into the incision of the rootstock, so that the bent parts of the two scions are closely combined and firmly bound with plastic film tape. At the same time, cover the cutting surface and the top of the scion with film tape. The operation methods of chopping scion and cutting scion are basically the same, and the main differences are as follows: the two sections of chopping scion are equal in length; The incision to split the rootstock is split from the center of the slice.

Splitting method can make the rootstock and scion firmly clamped and increase the chance of survival; However, the cut surface of the split seam is large, so we must pay special attention to dressing the wound so as not to affect the survival.

5. Docking method: Docking, also known as induced grafting, is characterized in that rootstocks and scions have their own root systems in the grafting process, and they do not leave the mother's body until they survive. This method is often used by local garden departments and flower professional households to cultivate potted osmanthus.

The specific method of butt joint is: in May and June, the female parent branch as scion and the female parent branch as rootstock (both can be potted seedlings, or at least one of the rootstocks is potted seedlings) are cut off at corresponding heights, and two butt joints with a length of 5- 10 cm and a depth of 1/3- 1/2 are cut off respectively. After grafting, the scion is cut from below the joint, and the rootstock is cut from above the joint to form an independent new plant.

Because the rootstock and scion of grafting method do not leave the mother, the survival of grafting is very sure. But the branch thickness of rootstock and scion should be very close; At the same time, because the butt grafting interface can't be lowered arbitrarily like other grafting methods, new roots can sprout from the original scion, so it is easy to appear the phenomenon of "small feet", "big feet" or root cutting caused by the incompatibility between rootstock and scion, which should be overcome or corrected in cultivation.