Wiping principle
Wipe out strong buds. Buds in the front of the main vine grow vigorously, often inhibiting the bud germination or new shoots in the rear. In order to balance the growth of each part of the main vine, the main bud of the upper bud with a strong upper edge is erased, and its auxiliary bud The growth force is relatively gentle, which can balance the growth force and ensure that the buds at the rear of the main vine can develop into new shoots.
Wiping method
Generally, hybrids germinate early, and the buds should be wiped first; varieties with strong tree vigor should be late, and the number of buds should be small to disperse nutrients; varieties with weak vigour should be early, and the number of buds should be large In order to accelerate the growth of the new shoots left by the concentrated nutrition supply.
Generally, no secondary shoots are left within 40 cm of the lower part of the plant, and they should be removed at the beginning of germination. When the new shoots can clearly see the uniformity of the buds and the growth of the young shoots, the first smearing is performed, the secondary buds are erased, and the main buds of hypertrophy are retained.
When there are multiple new shoots germinating on the mother branch, according to the size of the space where the mother branch is located, determine the number of remaining buds, select the new shoots with flower spikes in the middle and rear of the mother branch, and wipe off the flower buds on the upper part of the mother branch , To avoid moving the result site year by year.
New tip
When the new shoots grow to 30 centimeters, they are tied according to the new shoot growth. In order to prevent damage during traction and binding, and to change the growth direction of the new shoots, the base of the new shoots was half-lignified and then twisted. The specific method is to hold the second and third sections of the base of the new tip with the index finger and index finger of both hands, and twist it slightly to make it hurt, and the direction of the new tip becomes smooth. Twisting should not be excessive. When the injury is too heavy, it will affect the development of flower spikes and even cause the occurrence of falling flowers and fruits.
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Cannulated screw is a common internal fixation device in orthopedic surgery.
Working process
During the operation, the Kirschner wire with the hole matching the hollow screw is first drilled into the bone of the fracture site, and then the hollow screw is screwed into the fracture site through the guidance of the Kirschner wire. Finally, the Kirschner wire is pulled out to complete the fixation of the fracture site. In many cases of fracture of the neck and femur, the healing cycle is long, and it usually takes about 30 months to remove the cannulated screws. At this point, the bone and the surface of the cannulated nail are closely connected and firmly connected in the nail path, which leads to defects easily generated by conventional nail removal methods, causing secondary injury at the fracture healing site and causing pain to the patient. Percutaneous cannulated screw internal fixation for femoral neck fractures has the advantages of small trauma, good healing, low rate of femoral head necrosis, and good stability.
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