First, promptly in addition to sprouting in the spring after the survival of the high-sweeping head, most of the parts of the apple tree that have been changed from head to head are sprouted by latent buds, which seriously affects the growth of new shoots after head replacement. Sprout away to promote the growth of new shoots after head replacement.
Second, timely release of the apple tree after the survival of a high graft, with the growth of new shoots, grafting site quickly bold, if untimely untie the tie, the tie will be tied to the grafting site and affect the normal growth of new shoots. Therefore, the tie bar should be released in time after the grafted site completely healed.
Third, after accelerating the forming of the apple tree, the new shoot grows vigorously and rapidly due to the original larger root system of the rootstock. Plucking at the appropriate site will increase the number of branches, which will help the tree to be cultured earlier and lay the foundation for the future high yield.
Fourth, to strengthen the care and survival of apple trees, after the succession, due to the rapid growth of new shoots, the organization is young, the degree of lignification is not high, if not strengthen the care, encounter wind will cause litchi, broken branches. Therefore, the new shoots are generally tied with wooden sticks. In late May, the branches on the back will be twisted. It is advisable that the annual tip of apple trees be 6-7. Standing Litchi can be litchi in August to promote flowering. Litchi begins at about 5 cm from the base of the shoot and gradually pushes toward the tip. Each time 2-3 buds shoot, the angle will reach 90 degrees. The degree of litchi is constantly discounted.
Fifth, fertilizer and water after attacking apple trees to survive, should be strengthened fertilizer management, and with the top dressing. Generally after the 5-7 year-old apple tree is changed, the original canopy size can be basically restored.
VI. Pest control After the apple tree survives, due to the relative concentration of new shoots, the damage of pests and diseases becomes even more pronounced. In particular, spring food poisoning pests and stem diseases are more serious and should be strengthened.
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