1 Sanxiansansanqiu, three thin and three dense and high yielding
The order of pruning the red Fuji apple tree is to prune the big branch first, and then trim the branchlets; trim the lower branch first, and then trim the upper branch; trim the branches in the crown first, and then trim the outer branches of the crown. For better ventilation and lightening of fruit trees and high yields, the principle of "three rare and three secrets" should be followed when pruning red Fuji apple trees. That is, large branches and thin branches are dense; upper branches are thin and the lower branches are dense; branches are thin and the crown is thin. The branches are dense.
2 Light-cutting and long-term slowing, but no fruit or fruit clipping
Within one or two years after the colonization of Red Fuji, except for the proper cutting of branches or other branches with space, the rest of the golden mean branches shall not be cut and cut, and the results shall be retracted afterwards.
3 combination of blocking and cutting
In order to prevent the red Fuji branches from slow release for many years, the branches at the tip of the shoots are more branched, resulting in a reduction of nutrients in the tree, and the flower buds are not easily formed. The resulting parts are moved outwards, and some branches can be retracted (plugging) to stimulate the lower branches to draw short branches, leaving behind The branches are put slowly (placed) to form flower buds. At the same time, the Fuji branches that have formed flower buds can be cut short to the flower buds at the time of pruning so as to avoid the occurrence of strips due to short cuts.
4 Every three goes to both sides, leaving branches in the middle
The middle and small branches of Fuji apple tree canopy often appear dense and competing trigeminal branches. Generally, the branches on both sides should be removed and one branch in the middle should be left.
5 Extending the branches bending scissors
Red Fuji apple branches have a strong growth potential. When pruning, they can allow all types of backbone extension branches to bend and extend. That is, the angle of extension branches is reduced in the first year, the angle of extension branches is raised in the second year, and the angle of extension branches is decreased in the third year. Raise the angle of the extension branch in 4 years, and so on.
6 More than four long branches
In order to prevent the growth of Red Fuji apple trees from overpowering and affecting the results, Red Fuji often uses "four more than two long" pruning, four more refers to the outer periphery, leaving more branches on both sides, leaving more auxiliary branches, leaving more long branches; two long It is a long-stayed backbone extension branch, and the long branch stays with a head branch.
7 control top continuous shear
Red Fuji tends to grow stronger, weaker, weaker and weaker. Therefore, when pruning each year successively, it controls the vertex dominance of the shoots and promptly removes the standing twigs at the top of the twigs to promote the sprouting of the shoots at the lower end, and timely in the fruit period. Drop the head, leave the upper part of the crown, leaving more than the lower part.
8 First cut and then cut
In the branch culture of Red Fuji apple trees, the pruning method after the slow release first is generally adopted. That is, the annual mean tree branches are first put into bloom, and the results are obtained. Then, the branches are formed shortly, and then the branches are then cultivated. Combine.
9 "Three sets of branches" method scissors
Pruning of branches of Red Fuji often uses the "three sets of branches" pruning method, that is, a branch of three branches, one branch let the result of the year (the current year output), a branch slowly put (the second annual output), a Short cuts (yield for the third year) ensure that both branches and branches of the tree are present.
10 late fruit lifter
In the later period of Red Fuji fruit, the growth trend weakened. The angle of the branches should be raised, and attention should be paid to updating and moderate cutting.
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