Spring pruning is also called re-pruning before flowers, which is a supplement to autumn and winter pruning. The time of spring pruning is from the sap flow to the blooming period. Only the medium and small branches are thinned, intercepted, and retained, and no adjustment is made to the large branch groups, so as not to damage the flow and weaken the vigor of the tree, causing flower and fruit drop.
As long as there are hidden buds, carving buds can be carried out on all the missing branches. At 0.5 cm before the cryptic bud, the big trees and big branches are hand-saw deep to reach the xylem: small trees and twigs are used to deepen the xylem with a small hacksaw to promote the shoots and fill in the empty results. However, it should be noted that the engraved buds cannot see the buds engraved together. Excessive dispersion of the waterway will promote the flowering and affect the fruit setting rate. The engraving should be spirally engraved 10-15 cm apart. There are three advantages of engraving buds: 1. Sprouting the bare parts can increase the yield and economic benefit per unit area; 2. The rear waterway is scattered, the front extension is slowed, and the group is not easy to be sealed; 3. The branch axis is thickened Faster, the load force is increased.
The best advantage of the three-set pruning method is that it can balance the production and consumption of nutrients, and the relationship between production and accumulation. If the fertilizer, water, medicine, scissors, and pipes are well coordinated, it will be big and small. Will become a thing of the past. When pruning in a multi-flowered year, pay attention to leaving more medium and strong top flowering branches; cut 1/3 of the auxiliary shoots of the strong fruit stand, and 2/3 of the short branches on the back. The weak branches are retracted and rejuvenated. Flowers can be formed in the same year and bear fruit in the following year; all branches and leaves, including large-leaf buds, are short cut at the sub-full buds, regardless of whether there are autumn shoots or not. The short shoots sprouted in the same year, and the flowers formed in the following year, and they were fruitful in the third year. In the case of pruning in a few-flowered years, the flowers should be kept in full, and the leaves and branches should be full and short-cut to promote the next year to bloom, and the third year to bear fruit, artificially adjust the size of the year.
Thinning Fuji's prosperous branches will not produce flowers, and weak branches are difficult to bear. All branches that are drilled, excessively strong, excessively weak, diseased and insect branches, densely packed branches, and mopping branches are removed. Eliminating 1 kg of branches can save 200 kg of water. Therefore, the amount of branches left in the dry land should be slightly sparse, so as not to aggravate the contradiction between water supply and demand due to the large natural water consumption due to the large number of branches. Increase the number of branches in the water and fertilizer land, disperse the waterway, stabilize the tree, increase the yield, and improve the efficiency.
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