For ornamental osmanthus trees, artificial shaping and pruning can create the beauty of artificial intervention combining nature and art on the basis of natural beauty, and artificial pruning can enlarge the crown, accelerate the growth, prevent unnecessary nutrient consumption and promote the growth of flowers and trees. Pruning osmanthus fragrans can also enhance the wind resistance of trees, reduce the occurrence of pests and diseases, and prevent the latent and spread of pests and diseases.
1, the original marriage after plastic surgery is pruned according to the different uses of osmanthus trees. Different shaping methods form different tree shapes, and osmanthus trees with different uses have their own special requirements for shaping and pruning. For example, as a street tree, it needs to be pruned into a single branch of osmanthus fragrans to promote high growth, improve the height under the branch and form a middle trunk tree; As a flower-cutting tree, plastic pruning can control the height growth, expand the crown and form a tree without hollow stems.
According to the biological characteristics of osmanthus trees, the pruning degree is different in different growth periods. For young trees, light pruning should be carried out to facilitate the accumulation of organic matter and promote the differentiation of flower buds. For adult trees, it is necessary to adjust the contradiction between growth and flowering and fruiting. Old trees should be cut down again to stimulate the regeneration of branches and restore their growth potential.
Prune appropriately according to the environmental conditions of osmanthus tree growth. That is, in different ecological environments, its shaping and pruning methods are different; In different configuration environments, the ways of shaping and trimming are also different.
2. The way of shaping and pruning osmanthus trees
(1), naturally shaped, with oblate, rectangular, spherical, elliptical, umbrella-shaped and irregular shapes.
(2) Artificial plastics, which are plastic forms, have geometric shapes such as spheres, vases and rectangles.
(3) There are two kinds of plastic surgery: natural and artificial mixed plastic surgery with or without hollow handle and plastic surgery with hollow handle.
Non-hollow type: there are natural cup shape, natural happy shape, multi-dominant shape, tufted shape and hemispherical shape.
There are hollow types: divided into layered type and evacuated type.
3. The specific operation essentials of osmanthus fragrans pruning are: weak pruning of small trees and strong pruning of old trees; Cut more weak branches and less strong branches; Cut it where it is dry.
(1), bud smearing refers to the method of removing buds before they germinate. When osmanthus fragrans germinates, the buds on the trunk and the base can germinate, so it is necessary to wipe off the buds at the lower part of the trunk in time to concentrate nutrients and water on the branches above, so as to thrive and grow healthily and form an ideal tree shape.
(2) Short cutting is also called short cutting, that is, cutting off a part of 1 annual branches. The main function is to control the crown and shoot tip, so as to facilitate the germination of lateral buds. When osmanthus trees and branches are not growing well, they can be cut short. According to the different truncation degree, it can be divided into light truncation, medium truncation and heavy truncation. Short cutting can effectively control the crown and promote the development of medium and short robust branches.
(3), sulfur branch refers to the pruning method of removing branches from the base. Varieties with strong germination and branching ability will grow many times in a year due to too many branches, which will easily lead to closed crown, poor ventilation and light transmission, and branches that are too dense should be properly thinned. Pruning of Osmanthus fragrans is mainly based on thinning branches, only excessively dense peripheral branches are properly thinned, weak branches, clustered branches and diseases and insect pests are cut off, and the ventilation and light transmission conditions of plants are improved.
4. Repair the problem of basin injection in courage
First, young osmanthus fragrans has great growth potential. In addition to dead branches, pests and diseases, long branches, cross branches, combined branches and damaged branches, they should be pruned in time, and it is generally not advisable to cut them strongly.
Second, plastic pruning should take the shape of a tree. For Jingui and Yin Gui, in order to cultivate a crown, it is necessary to cut off the sprouting or sprouting branches on the roots and trunks; Cinnamon can naturally form a shrub, and it can become a ball with a little shaping and pruning. After shaping, it is generally only necessary to delete slender branches, dead branches, over-dense branches and cross branches.
Third, the economic tree of flower picking should not be pruned after it is finalized, otherwise it will affect the amount of flowers.
Fourth, when trimming, the incision should be smooth to facilitate healing.
Fifth, plants that grow very tall and lack leaves at the lower part can cut off more than 2/3 or 3/4 of the trunk to promote the growth of new branches at the lower part. In the coming year, all branches that are found to be overgrown, dislocated and other messy will be cut off to form a full natural shape.
Sixth, for top-heavy trees that grow too high, you can cut off the branches on them and leave only a few smaller branches to balance the tree.