Depending on the age of the tree, the life of pruning fruit trees can be divided into four periods, and each period has its own different pruning method and purpose. In the young tree stage, choose a tree shape, and then slow down. In the early fruit period, the skeleton is cut in winter, and more flowers are promoted to control the transformation of vegetative growth to reproductive growth. In the fruiting period, renew and rejuvenate, gain high yield, try to control the phenomenon of small and large years, and extend the fruiting period. During the senescence period, the crops will be cut back, the sprouts and sprouts will take the lead, and the trees will be rejuvenated and rejuvenated.
Looking at the tree vigor, there are criteria for promoting and controlling the tree vigor to judge the thickness and growth of new shoots and the proportion of short and medium shoots. Generally, the growth of mediocrity and new shoots is 30 cm; middle and short branches account for 70% to 80% of the total branch amount. Above this is a vigorous tree, and below this standard is a weak tree. For weak trees, it is necessary to shorten the length of the tree, and more sparse flower buds should make it less fruitful or fruitless, and increase the internal nutrients of the tree. For low-yielding vigorous trees, try to open the angle as much as possible, cut lightly and lengthen, control the branches on its back, promote the oblique branches, and then shrink and grow the inner branches.
Looking at the flower buds, retaining the flowers with reasonable quality is the determining factor in determining the current year's output. In the young years, every flower must be contested, and the fruiting branches are cut lightly, leaving the medium and long branches that may become flowers, and the middle and long branches without flower buds are started when the flowers are cut again to prevent the second year from being a big year. To renew branch groups, sparse flower buds, flowers and fruits, to prevent the appearance of young and old.
Looking at the density of the tree, the current fruit tree cultivation is moving towards dwarfing and dense planting, with early results and rapid benefits. For more than 100 plants per acre, the trunk type or slender spindle shape is used; for 50 to 90 plants, the free spindle shape is used. It is more suitable to sparsely layer with a small crown below 50 strains.
Seeing the importance of pruning according to the conditions of water and fertilizer, it is said that five miles are different and ten miles are different. The environmental conditions of the orchards of different families are different, and their growth is different. Poor land, dry land, growth is weak, pruning is appropriate. The soil is fertile, it grows strong, and the amount of pruning should be light.
Looking at the characteristics of fruit trees, short-type, short-type cultivars have relatively small bodies, high germination rates, and weak branching power. They should be more young and increase the number of branches during the young tree period. Get it early. The arbor-type cultivar has strong tree potential, weak resistance, late fruiting, large crown, pruning method and short branch, and dwarf type is just the opposite.
Good or bad, look for this year's cut on the answer tree, and look back on the year. Zoom in and out, and the method is right. If the cut is not ideal, the method is wrong. In short, with the attitude of pruning, you must ask and follow the attitude, there will be few problems.
The branch group with empty cuttings is the basic unit of growth and growth in the crown. The branch group can be divided into three types: large, medium and small. Resulting branch groups should be scientifically and reasonably arranged according to the size of the space. Many small branch groups are cultivated on the back. The side branches are mostly large and the drooping branch groups are medium in size. Wavy.
Viewing angle The opening angle is the most conducive to the slow release of trees, and the branches are easy to bloom. Adjust the angle so that the resulting branches reach the best 90 degrees, which is conducive to the purpose of slowing flowers.
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