1. De-sprouting and bud-smearing of osmanthus trees: De-sprouting and bud-smearing are a method to erase the new shoots of osmanthus trees before they are lignified. This work in time can save a lot of organic nutrients and promote the rapid and healthy development of retained branches. In addition to germination and bud wiping, the focus is on the roots and necks of young trees near the ground, which should be carried out many times a year, especially in time before the spring, summer and autumn shoots flourish.

2. These new buds germinated from adventitious buds and latent buds have strong vitality, fast germination speed, slightly delayed treatment time, and many clustered branches will appear at the base. What's more, some long branches are straight up and compete with the trunk in parallel, disrupting the original tree shape. Due to various reasons, germination and smearing can not be carried out in time, and the tillers for germination have grown up. When pruning, all of them should be removed from the base, leaving no living piles, otherwise the sprouting tillers will be cut more and more.

3. After grafting (after cutting the rootstock by branch grafting or bud grafting), it is particularly important to remove sprouting and smear buds. Because the healing of scion and rootstock needs a process, it is often that the hidden buds on rootstock will germinate before the scion germinates, competing with the scion for nutrients and reducing the survival rate of grafting. Even if the grafting survives, the scion will sprout new branches, and the growth potential of the sprouting tiller is still stronger than that of the scion. If it is not treated in time, it will seriously affect the growth of scion shoots. Therefore, the sprouting and sprouting after grafting should be repeated many times.

4. Twisted shoots of osmanthus trees: Twisted shoots are mainly aimed at new shoots that are growing rapidly. Removing the tender part of the top of the new shoot can control the growth height of the new shoot, promote the senescence of branches and stimulate the lateral meristem. Twisting branches is to twist semi-lignified new shoots, weaken the growth potential of branches by destroying the conducting tissues of xylem, and retain the photosynthetic function of branches and leaves. Picking and twisting new buds are used to adjust the growth potential of new buds. When there are many branches at the base of osmanthus fragrans seedlings and the trunk is not obvious, new shoots with good growth position and relatively vigorous growth are selected and not treated. If all other new buds are picked or twisted, the new buds will be strengthened by the top advantage and the height will increase rapidly. Repeat this operation for 2-3 times to cultivate a thick trunk. If the trunk grows too fast, it will be too long and too thin, or if there are competing branches, it can be adjusted by pinching branches.

5. Truncation, retraction and thinning of osmanthus trees: Mature branches need pruning with pruning shears. Short cutting, also known as short cutting, is to cut off a part of annual branches to reduce the number of buds on branches, concentrate nutrition, promote the thickening and branching of branches, and stimulate cutting buds to produce strong branches. Shortcut pruning is often used to prune the extended branches of the main branch.

6. Pay attention to the plumpness and bud position direction when cutting short. Usually, fully developed buds are selected as cutting buds to extract strong extended branches. If the short branches grow too vigorously, the spring shoots, summer shoots and autumn shoots grow continuously, and the elongation of a single branch is too long, the latent buds of blind nodes can also be used as cutting buds to promote the lower and middle branches. The selection of bud position is mainly to adjust the extension direction of branches. The degree of stubble retention depends on the thickness of branches and the stimulation intensity required for pruning reaction. For osmanthus fragrans, the front branches are dense and it is easy to form whorls. Therefore, the pruning of the extension branches of the main branch is generally to cut off the branches of 1/3 to avoid the occurrence of round branches. Retraction is a pruning method of heavy and short pruning for old branches over 2 years old. Retraction pruning is mainly used to change the head of backbone branches, change the extension direction of big branches, open the angle of main branches, and adjust the balance of growth potential between branches. Pruning is to completely cut off branches from the base, which is mainly used to deal with branches that grow too densely. For the extended branches of the main branch, the dense round under it should be unfamiliar to concentrate nutrients and ensure the normal growth of the extended branches. Deleting the strong branches of the unit branch order can weaken the growth potential of the branch order, balance the tree potential and improve the illumination.

7. Pruning is an important measure to cultivate single-stem osmanthus trees. Through pruning, the nutrients of trees are redistributed in a planned way, so that the excessively dispersed nutrients are concentrated and mainly supplied to the growth center. To cultivate single-stem osmanthus trees, timely and reasonable pruning is needed to make the tree structure reasonable and form a single trunk, so that branches and leaves with strong assimilation ability can be planted in the favorable position of the trunk and a large amount of nutrients can be used for the growth of the trunk thickening. Regulate the contradiction between trunk and crown growth, flowering and vegetative growth, growth and aging and renewal. And can make it grow into the required tree shape and reach the ideal height. It can also reduce pests and diseases, thus making.