Do not insert an oxygen tube to prevent apple rot disease. The specific operation method is as follows (the scion or the root seedling is strong and does not lead the branches):
The method of connecting the feet is to use the sprouts of the root of the diseased tree or the branches of the diseased part to scion, and connect the top of the diseased tree to the upper part of the diseased culm, so that the up and down nutrient can be dredged through the twigs. Foot connection time is the same as bridging, as long as skinning is possible at any time. In addition to the use of root seedlings and 1-2 year old shoots, it is also possible to use the green shoots that had been wooded that year without having to remove the leaves.
The bridging method cuts the tip of a robust and non-headed branch and connects it to the upper part of the disease. One end is connected to the lower part of the disease, and the branch is used as a bridge to make nutrients clear. Bridging time: Normally it is most suitable when the bark is easy to peel in the spring of March and April (Ching Ming and Gu Yu). Other times can be performed at any time as long as it is peeled off. The scion should choose full, healthy vegetative branches, with the best annual branches. The length of branches depends on the length of the disease. Scion should be used with it.
Grafting method rootstock processing. Scrape and cure all the rot disease skin clean, coated with disinfectant and then grafting. When grafting, first in the lower part of the disease from the lower edge of the disease 5 cm, with a knife cut a "T"-shaped incision, about 3 cm in length, deep to the xylem, the incision cortex opened. A "rhombic" incision is made at the top 5 cm above the edge of the lesion.
Scion processing. The required length of the scion is on the same plane as the lower end of the scion, and the horse-shaped noodles are cut with a sharp knife. The noodles should be smooth and smooth; the top cuts the skin of the scion, and the length is consistent with the "rhombic" cut of the rootstock.
Bonding. After cutting the scion, it is necessary to insert the rootstock's "⊥" shape incision at the fastest speed, so that the cuttings and the formation of the branches close together. After plugging in, use a small nail to fasten the center of the scion and the joint of the rootstock.
Mud + coating (moisturizing, oxygen-blocking healing) protection. The branches are slightly bowed. Branches with large branches of rot disease can be bridged by multiple branches.
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