One, over the control of Wang tree When the tree vigor grows excessively, the branch growth predominates and the flower bud differentiation and nutrition are insufficient, which is not conducive to flower bud formation. For such branches in the transformation, should be mainly "slow" mainly to extend the long stay branches, generally cut at the weak shoots, increase the branch angle of the main branch, remove the back of the branch group, more stay side, lower branch group, implementation Such measures as circumcision of circumcision, control of nutrient delivery, and promotion of flowering. Second, to promote the pruning of weak trees When the tree grows too weak, it can be stimulated by heavy shear on the basis of fertilizer and water management. Extension branches should be cut in the middle full of buds, with strong branches to take the lead, and gradually increase the length of the extension, leaving less branches to avoid weakening the growth of the branches, should stay on the back and both sides of the branches to promote growth. Third, the trimming tree pruning When the fruit tree is large on one side and the crown appears on one side, the solution is as follows: First, thinning the branches at the lower part of the branches, sparsely on the upper part of the branchlets; Second, pulling the big branch angles, raising the angle of the branchlets; Third, the large branches and more fruit, twigs Less fruit; Fourth, the direction of the big branches to be less fertilization, fertilization in the direction of the twig, is strictly prohibited to use big cut and big cut method to transform the tree. Fourth, treatment of bare branches Some branches of apple trees do not cut for several years in a row, often uniaxially extending, with few branches, forming large sections of baldness, and such branches have poor flowering performance. Due to the limited nutritional area, the fruits have poor growth and development. For pruning of such shoots, if there is space for the implementation of the ring cut to stimulate bud germination, grow the desired shoots or timely retraction, stimulate the hair sticks, cultivate good branches to expand the photosynthetic area. If there is no space, it should be removed immediately to improve the ventilation and light conditions of the tree. Fifth, the treatment of strong and weak trees During pruning, the lower branches of the canopy can be extended with competitive branches, extending the branches to maintain a small angle and promoting the growth of the lower branches. The middle and upper branches increase the angle of extension, and the remaining branches are selected as extension branches to balance the tree potential. Sixth, the treatment of weak branches The lower branches of the big horn extension, behind the branches to take the lead, weakening the growth potential, the upper branch of a small angle extension, the back of the branch take the lead, and promote growth. Seven, promote flower trim The early apple trees of saplings and fruit-bearing fruits should be led by weak branches during pruning in order to control the vegetative growth of the trees, increase nutrient accumulation of the trees, and promote flowering. It is also possible to assist in the adoption of circumcision and other closure measures to promote flowering. Eight measures to prevent debilitating tree vigor After the apple enters the full fruit period, due to a large number of results, the tree vigor is easily weakened, and pruning should use a short cut and retraction method. To strengthen vegetative growth and prevent tree vigor. It is also possible to increase tree vigor by appropriate amount of flowering. Nine, cross-branch processing The cross-branches in the tree body are retracted one by one, long one is placed, and both lines are retracted when the lines cross each other, so as to leave the work channel and improve the ventilation and light transmission conditions. When the crossbranch does not exceed 10%, the effect on growth results is not significant, and more than 10% should be retracted. Ten, parallel branch processing Saplings and early fruiting trees should be used as far as possible for parallel branches, so as to increase the amount of tree branches and enter the apple tree in the full fruit period. In the absence of space, one tree should be sparse and one tree should be placed to improve the tree. Body ventilation and light conditions. Eleventh, auxiliary support treatment In the early growth period of the fruit trees of the auxiliary branches, pull and pressure should be used to promote flower growth in order to increase the amount of tree results. After the results should be immediately retracted to avoid posterior baldness and cultivated into a compact group of results. Twelve, handling the results of the internal branch too dense branches In the principle of sparse scaling, we must eliminate dense and disturbed branches and retract high and thin pendulous branches so that the branches and groups are distributed evenly and compactly. After Wang Wang's sparse branches set a barrier, he concentrated on nutrients and made him become a flower for many years. For a single upright leggy branch, there is room to push down flat, do not pull, lychee, and ease the top edge. No space can be removed from the base. For drooping branches with moderate growth levels, a small amount of "bringing caps" can concentrate nutrition. For scallops at the mouth of the slash, go straight and stay oblique.
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