How do camellia trees graft camellias?

How do camellia trees graft camellias? What is there to pay attention to? Also ask netizens to help introduce the method of grafting camellias on Camellia oleifera, which is listed below for netizens' reference. First, the choice of grafting time: Camellia oleifera can be grafted during the growth of Camellia oleifera and Camellia oleifera in spring, summer and autumn. Among them, the effect of grafting from March to June is better, so the quality of scion is better, the climate condition is suitable, the growth period of scion is longer, the growth is large, and the survival rate of scion is high. Since the temperature is high from July to August, shading and moisturizing measures must be fully taken in order to achieve a satisfactory survival rate of grafting. Although the temperature is suitable and the survival rate of the scion is high from October to November, the growth period of the scion in the same year is relatively short, and the new shoot of the scion is not fully lignified after winter, so it is easy to suffer frost injury. Second, the selection of Camellia oleifera rootstock: first of all, the 15-35-year-old Camellia oleifera tree with exuberant growth and no diseases and insect pests must be selected as the rootstock. Select 5-7 main branches with a diameter of 2-5 cm on the rootstock. The angle of the stem and stem of the stock should be appropriate, the master-slave relationship should be clear, and the distribution should be balanced. Only in this way can the grafted plants form a good crown and make the distribution of camellias symmetrical and beautiful. In addition to the rootstock, one or two main branches should be left as vegetative branches for each rootstock, and the rest should be removed. One or two side branches should be left as auxiliary branches for each rootstock, and the rest should be removed. Third, the selection of the scion of the rootstock: the growth of the scion mother tree and the rootstock should be in a prosperous period, and only by scion picking and grafting can the rootstock have a high survival rate and grow harmoniously. Different mother trees with similar florescence and similar growth should be selected for scion collection of the same rootstock, so that the crown development of the rootstock is balanced. If the basal diameter of the rootstock is thicker, the scion of the variety with fast growth and large flower shape should be selected; if the basal diameter of the rootstock is smaller, the scion of the variety with smaller leaf and flower diameter should be selected. The same rootstock can be grafted with multiple varieties of scions to form a rich and colorful color structure with different left and right sides, different top and bottom, different colors in the middle and multi-colors around. Fourth, the collection of camellia panicles: Camellia should be selected as the scion mother tree, which is an excellent and valuable adult variety with exuberant growth, no diseases and insect pests. In the upper periphery of the crown of the mother tree, the strong branches with sound development, full bud eyes and diameter of more than 0.3 cm in diameter were cut as scions. The ear branches are bundled into small handfuls, and the base is wrapped with wet toilet paper to prevent the wind from being exposed to the sun and used for grafting as soon as possible. The scion collected in winter should be stored in wet sand layer, the humidity of sand should be no water by hand, one layer of sand and one layer of scion, finally cover the wet grass, take out and use when grafting. Grafting method 1. Grafting method: cut off the rootstock between 60 cm and 90 cm from the ground, cut off the branch at 2 cm in diameter, retain the auxiliary lateral branches, remove other lateral branches, remove the dirt under the fracture, flatten the fracture and make the inside of the fracture slightly higher, and cut a 2cm long cutting surface at the back of the leaf scion (making the leaf surface at the top of the cutting surface). Cut deep to slightly see the xylem, cut a short cutting surface at both ends of the long cutting surface, make its cross section into a horse ear shape, and cut off half of the blade. Cut the cortex of the cross section of the rootstock longitudinally twice down to the xylem, and the width and length between the two knives are equal to the width and length of the scion length. Pick out the longitudinal incision of the rootstock and pull down the cortex, embed the long cutting surface of the scion into the incisor, and cover the scion with the rootstock. Finally, wrap the interface with plastic film tape, cover the scion with plastic film (for moisturizing), wrap the Kraft paper outside the bag (for shading), and bind the bag and paper firmly. 2. Cambium butt grafting: when the selected rootstock is 60-90 cm from the ground and the branch diameter is 2-5 cm, the dirt on the graft is removed. The reverse side of the scion leaf is cut into a long cutting surface with a length of 2 cm to 3 cm, so that the cambium is slightly xylem. When cutting the cutting surface, the blade should be at the upper end of the cutting surface, and a short cutting surface should be cut at both ends of the cutting surface to make its cross section into a horse ear shape. Finally, cut off half of the leaf. Cut a cutting surface on the rootstock with the same length and width as the scion, deep enough to see the xylem in the middle of the cambium. Attach the long cutting surface of the scion to the cutting surface of the stock, wrap the interface with plastic tape, and tie the plastic film (for moisturizing) and Kraft paper (for shading) at the same time. Finally, the rootstock above the grafting position was broken at 1ax 2 to remove its apical dominance and promote the shoot emergence and growth of the scion. 6. Management methods after grafting of camellias: 1. Unbinding and shearing rootstock tea trees about 30 days after grafting, when the new shoots of the scion come into contact with the moisturizing film, the moisturizing film can be cut off in cloudy days or in the evening, but the shading paper should still be retained. The shading paper and bandage can be removed in about 60 days. The rootstock above the grafting position of the rootstock can be cut off in about 90 days, the sprouting tillers and auxiliary lateral branches can be cut off, and the vegetative main branches can be removed after half a year. 2. The fertilization and irrigation of grafted camellias should be fertilized reasonably according to the different stages of grafting growth. 1 kg of high quality fertilizer such as cake fertilizer is applied to each plant in winter; diluted liquid fertilizers such as calcium superphosphate, potassium dihydrogen phosphate and urea can be applied in spring and summer; and foliar fertilizer can be sprayed on cloudy days or in the evening during flower bud differentiation and flower bud expansion period, and its concentration should be less than 0.3%. Timely and appropriate watering and fertilization is an important measure to promote the growth of grafted plants. The three seasons of spring, summer and autumn are the growing season of camellias, which requires a large amount of water and is suitable for drought and water application; in winter, camellias enter a semi-dormant period, appropriate watering can keep the soil moist. 3. Grafted camellia diseases and insect pests control bituminous coal disease is the main disease of camellia, the disease makes the plant black, hinders photosynthesis, thus affecting plant growth and development; bituminous coal disease is caused by shell insects, and the way to prevent it is to eliminate shell insects. Scale insects can be sprayed with 1000 times poison silk, once every 10 days, three times in a row. Longicorn beetles and tea stalks eat tea stalks. Cotton can be dipped with 80% dichlorvos emulsion and stuffed with borer holes. The tender leaves of tea trees are easy to be harmed by piercing and chewing mouthparts pests, which can be sprayed with 1500 times poisonous silk. Click to get more camellia planting techniques click to get more flowers and trees planting techniques