The navy of Houtianzhuang Township, Inner Mongolia County, Liu Haijun, said: We have a lot of rough walnuts and eucalyptus trees on the mountains. If you want to graft walnuts, you can't do it. How do you graft them? Walnut nicknames Walnut peony, pecan, northeast walnut, wolfberry fruit walnut, is a kind of wild walnut plant, the number of walnut pods in our province is more. The fruit of walnut pods is very thick, with few seed kernels, and it is difficult to obtain kernels. There is almost no economic value. The use of walnuts instead of ordinary walnut varieties can obtain better economic benefits. Specific techniques are as follows: Rootstock selection should be selected as a rootstock with better site conditions and strong growth. 2. Variety selection late real walnuts have strong adaptability, and the growth results after the change of connection are in good condition. The better varieties are Qingxiang, Jinlong 1, Jinlong 2, and Gift No. 2. 3. Scions were collected in areas where the walnut strips were severe or branches were susceptible to freezing injury. They were collected at the end of fall and winter (11 to 12 months). Areas where the winter draw and the cold are less severe are collected before the spring scions sprout. The scion was taken from the outer branches of the crown. Requires robustness, small pith, no pests and diseases. 4. Scion storage and transportation Scoops collected in late autumn and early winter need to be ditched at the shady area for winter storage. Generally, the ditch width is 1.5 to 2 meters and the depth is 80 cm. The length depends on the number of scion. The scion of the indicated variety shall be placed flat in the ditch. Each layer should be placed with about 10 cm of wet sand or wet soil in the middle, and finally covered with 20 cm of wet sand or wet soil. After the scion is put down, it needs to be poured once. After the soil freezes, thicken the top soil layer to 40 cm. 5. About 15 days before grafting on the scion cut and wax seal, the scion was cut to a length of about 16 cm and there were 2 to 3 full-filled spikes. The first bud at the top should be complete and plump, about 1.5 cm from the cut point. The sheared spikes were fast-sealed and sealed in a wax-removal vessel, and the wax sealing temperature was controlled at 90°C to 100°C. Wax-sealed scion is placed in a cool environment (such as a cellar, a cave, a cold store, etc.). 6. About 5 days before the rootstock is ready for grafting, the affiliation of the tree may be cultured, and the grafting site may be sawn on the walnut seedlings (applicable to a diameter of 5 cm or less). At the base of the trunk, three to five spiral water outlets are drilled, and the depth reaches the xylem. . Note that do not apply water within two weeks before and after grafting. 7. Walnut axillary buds germinate during the grafting period until the leaf expansion stage (April). 8. Grafting method walnut seedlings to connect with the skin tongue to connect. At the lower end of the scion, the tongue-shaped noodles with a length of 5 to 6 cm on one side were cut, and the peeled skin and xylem were peeled off. The old rough skin was cut off on the straight side of the rootstock to expose the inner layer of the phloem, and the length of the cut surface was 6 to 7 cm. The xylem of the scion noodles is inserted between the xylem of the rootstock and the phloem, and the phloem of the scion is applied on the outside of the tender skin of the rootstock. Finally tied tightly with plastic film strips. 9. In addition to moulting, attention should be paid to timely removing the sprouting and non-viable joints produced on the walnut pods, optionally leaving a robust and vigorous sprouting twig, and all the rest removed to prepare for grafting or bud grafting in the summer green branches, and may also be left for grafting in the following year. 10. When tied up to 30 to 40 centimeters in diameter, the new pillars should be immediately tied to new shoots next to the new shoots. 11. When the unwrapped scion shoots grow to 40 to 50 cm in length, the tie of the interface is released.
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