1. Insert skin connection, also called subcutaneous connection
This method is suitable for the grafting of jujube trees where the thickness of the rootstock is greater than the thickness of the scion, and the rootstock germinates and peels off the bark. First cut the scion into a smooth long cut surface of 3-5cm, and then cut a 0.5cm short bevel on the back of the lower end of the long cut surface in order to facilitate insertion. Choose the smooth part of the bark and cut the anvil, smooth the cross section, and make a longitudinal slit with a knife on the side of the rootstock to reach the xylem. When inserting the scion, place the long cut face inward and the short cut face outward, and slowly insert downwards facing the cutting seam. Do not insert all the cut faces of the scion into the rootstock. The upper part should be 0.4-0.5cm white to facilitate wound healing. Then use plastic strips. Tie tightly around the wound.
2. Budding with xylem
Select the buds on the scion, cut off the secondary branches above the main bud 1cm, and cut a long cut surface on the back or side of the main bud, the length of the cut surface is 2.5-3cm. Cut a short cut face face to face with a long cut face to a length of 1 cm. Cut off the upper part of the main bud with 0.8-1cm. Select the smooth bark of the rootstock at a distance of 20cm from the ground to cut off the upper part, then cut a cross on the rootstock to the xylem, cut off the phloem from bottom to top, find the cambium, and use a grafting knife along the edge Cut the cambium down 3-5cm, insert the long cut surface of the grafting bud inward and the short cut surface outward along the incision, align the cambium, wrap the wound with plastic strips, and only expose the budding bud. The survival rate of this grafting method can reach more than 90%.
3. Splitting
Splitting Splitting is a kind of grafting, also known as large grafting. The grafting time can be earlier than the bark grafting. It is performed when the bark is not easy to peel off but the sap has begun to flow. It can be used for small seedling grafting in nursery or large tree grafting. The method is: grafting the nursery seedlings, first remove the weeds and useless roots around the seedlings. Cut the rootstock seedlings on the ground, and then dig down the soil about 10 cm deep to expose the thick and smooth part of the rhizome. Cut the cross section of the rootstock with scissors, and cut a 2-3 cm long cut along the center of the cross section of the rootstock, and then quickly cut the scion down from the bottom 2-3 cm into a double-sided wedge-shaped smooth surface. , The upper thickness is thinner, such as the scion is thinner than the rootstock, one side of the cut surface is slightly thinner than the other side, and the main bud is on the thin side. Then quickly insert the shaved scion into the cleft of the rootstock, leaving the upper end of the scion cut surface 1-2 The cut surface of millimeters, commonly known as "white", align the cambium on the thicker side of the scion with the cambium of the rootstock. Then use a plastic film to evenly wrap the joints of the rootstock and scion to moisturize. If the scion has not been wax-sealed, wrap it tightly with a thin mulch to prevent water loss.
