The pruning of the apricot tree before the coating is mainly to further clear the layers, retract and extend the main branch which affects the air and light, and solves the problem between the tree and the plant, between the rows and the rows, and the foliage. The air and light transmission between the layers reduces the load and improves the fruit setting rate. Trimming takes place 10-15 days after the fall. The trimming skills are as follows:
1. Reduce the amount of trim. The amount of branching, flowering, and growth forces between the main branches must be relatively balanced. When operating, care should be taken to minimize the amount of pruning and prevent overstimulation so as to avoid strong nutrient growth after germination, resulting in nutrient competition and affecting fruit setting. Attention should be paid to the removal of weak and weak branches, over dense branches, standing upright and long branches, overlapping branches, disease and insect branches, etc. Strictly remove the interference branches between the leaves and curtain layers, and improve the ventilation and light transmission conditions in the crown after the suppression and promotion. .
2. Retract the result sticks. Seriously retracting the resulting stems, especially those with excessively dense floral buds, should be combined with thinning and careful sparse shearing to weaken and control the amount of growth of the undesired part of the mother branch, promote the growth of late branches or stimulate the sprouting of latent buds, and change. Various kinds of extension branches extend direction and angle.
3. The short cut is due to the tree setting. The severity of the degree of shortness should be determined according to the thickness of the branches, the length and the variety, tree vigor, and short-cut purpose. The short-cutting effect of the apricot sapling is to stimulate sprouting under the cut-off and to draw 2-3 long shoots to rapidly expand the canopy, increase total tree branch and leaf area, and increase the result area; the middle and lower branches left behind, It can promote a certain number of short fruit branches for the second year results; it can maintain a robust tree vigor and a stable result position in the fruit period, delay the outward movement of the resulting parts, and maintain stable yield; a short cut to the aging tree, Can promote its update and rejuvenation.
4. The tree height should be suitable. For fruit trees cultivated in facilities, the height of the tree should be adjusted to a state of low height from south to north, so that the canopy of the northern half can also obtain sunlight. When pruning, you should first check whether the apricot tree has grown to a suitable height, and whether the tree should be happy to fall and improve the lighting conditions from above. Special attention should be paid to the retraction of the leaders to make the tree happy, maintain the height of the tree 100-180 centimeters, leave the most southern one 100 centimeters tall, leave the most north one 180 centimeters tall, and separate the middle strains. Between the two, it gradually increased from south to north. It is necessary to strictly control the height of the tree and the crown and crown, and to prevent the outward movement of the result.
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