When the high-risk plant is changed, the high-risk planting time of the pear tree in spring may be better during the spring period from the end of February to the third month.
For high-replacement and high-replacement methods, buds should be used as full-grown, vigorously developed, and disease-free high-quality buds should be used as the scion in the upper middle shoots of the annual shoots, and attention should be paid to picking the scions on the fruit trees that are already fruited. When you pick up, you should put a 3 to 4 cm oblique face on the side of the scion. Cut a small incision on the opposite side of the noodles. Now select the joint according to the tree shape of the pear tree, cut it at the place where the joint is round, and cut it to be smooth and clean. Then use a grafting knife to cut a joint that is basically in line with the scion slope, and press the joint with the left hand and the right hand. Take the scion and insert it into the incision. Do not insert all the scion. Leave 0.2 to 0.3 centimeters of space. Be careful not to insert the bias. The two layers should be aligned. If the connector and the scion are of different sizes, the layer must be aligned. After the operation is completed, it is tied with a plastic film strip and the seal is not exposed. The entire operation process requires accurate and rapid.
The number of high-replacement species In general, one branch can receive two scions, and the adult tree branches can have no more than four scions, and each plant can receive 20 to 30 scions. Scions can generally leave 3 to 4 buds, and some can leave 7 to 8 buds.
After the management of high-risk accession, the management of water and fertilizer, prevention and control of pests, and cultivation and weeding should be seriously carried out. In the second half of the month, if the scion becomes black, it must be patched in time. After that, the new shoots that were pumped grew vigorously, and the interface was younger and the winds easily blown off the new shoots. Therefore, when the new shoot grows to 20 to 25 centimeters in length, it must be manually tied and reinforced, and the original plastic ties must be loosened after a few days and then completely removed. As long as the management is properly managed, the canopy can be formed that year and the new shoots can be up to 1 meter in height. Flower buds can be formed in the year and the results can be obtained in the second year.
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