1 Planting methods and techniques
1.1 Planting methods
When planting golden osmanthus, whether it is a large tree or a small seedling, the hole planting method is the best. In the case of urban greening, it can vary according to the green space area, and the spacing between plants should not be less than 5m.
1.2 Preparing the land and digging holes
At present, although the cultivation area and quantity of Jingui are relatively large, the supply of seedlings in the market is still in short supply, so one plant should be planted and one plant alive. This shows that comprehensive land preparation is one of the key links. While preparing the land, the tree hole should be dug. The size of the tree hole depends on the size of the tree and the soil ball. When digging a hole, dig the soil to the outside of the tree pit and expose it to the sun, and pile it up and down according to the soil layer. After winter rain and snow promote weathering of the soil, cover it with soil, break up the topsoil, backfill it to the bottom of the pit, and then fill it with soil to 1/2 of the depth of the hole. Or 3/5. After the trees are "returned" into the pit, it will not only improve the survival rate of the trees, but also facilitate the recovery of the underground and above-ground parts of the trees. The key points are: careful soil preparation and deep and large holes.
1.3 Planting time
Golden osmanthus should be planted in early winter or early spring. It can also be planted in early summer, but it must not be planted in hot summer. If the climate conditions permit, it is also feasible to plant in summer and autumn. The key is It is an area with severe cold winters, so do not plant in winter, because the cold will easily cause the tree roots to lose water and die. When planting golden osmanthus in large areas or in large quantities, try to follow the seedling raising, transportation and planting, which will help improve the survival rate. The key points are: avoid the heat and cold.
1.4 Pruning of seedlings
When the seedlings are transported to the construction site, technicians must be organized to prune and shape them immediately. The key points of pruning are: pruning inside and outside; pruning up and down to remove damage. For health care, look left and right to see neatness, and look down to see perfection.
1.5 Planting
Pruned trees can be put into tree holes, and the depth of the soil balls placed is 1/2 or 3/5 of the depth of the hole. After the trees are put into the hole, they are covered with soil, compacted, watered, and then covered with soil, compacted, and watered. Finally, the tree trays are piled into a "steamed bun shape, pot bottom shape". The purpose is to facilitate watering, drainage, and improve the survival rate. The key points are: : Shallow planting, tamping, straightening, stacking.
1.6 Bundling and Moisturizing
When transporting trees, the soil balls and trunk parts must be tied with straw ropes. The purpose is to prevent root damage and bark damage. After planting, wrap plastic around the trunk parts again. The purpose of film or anti-freeze cloth is to prevent the trunk epidermis from losing water, and play the role of moisturizing and sun protection. The key points are: from bottom to top, tightly wrapped and tightly.
1.7 Support to prevent lodging
In order to prevent strong winds from blowing down trees and affecting their survival, support is needed. The specific method is: the diameter of the small end of the wooden stick is 3~5cm, and the length ranges from 180~350cm. Then according to the length of the support, the trunk part is defined, and then the small head of the triangular support is placed here, and 2~4mm iron wire is used to support the tip. Just secure it tightly to the trunk. The principles of triangulation are: the material is tough and does not damage the bark; the shape is neat, strong and effective. For example, when the trunk diameter of Jingui is 4~10cm, the "冂"-shaped support can be used. The key points are: the pile is deep and firm, and does not damage the bark of the tree.
1.8 Pour root water and cover with soil
Water should be watered when the soil reaches 1/2 or 2/3 of the tree's soil ball. The purpose is to make the "mother soil" of the soil ball and The locals and guests are closely integrated. When the soil cover is in place, water it thoroughly again, and finally pile the tree trays into a "steamed bun shape, pot bottom shape".
2 Management skills
1.1 Loose soil and weeding
Loosen the soil once each in summer and autumn to a depth of 10~15cm. The number of times of soil loosening can be combined with weeding. Weeding should be done no less than 4 times a year, and weeding should be based on weed density and weed growth conditions. The principle is: remove early, remove small, remove, and loosen the soil appropriately.
2.2 Fertilization
It is not suitable to fertilize the seedlings in the year they survive. Wait until early spring of the next year and apply an appropriate amount of extra-root fertilizer. The type of fertilizer is suitable to be compound fertilizer. The principle is: "Eat less, eat more." meal".
2.3 Antifreeze
Currently commonly used methods are: wrapping straw rope in film, winter irrigation (watering) and other methods.
2.4 Pest Control
① Material quarantine.
In areas where trees and other propagation materials are selected, origin quarantine must be carried out on the selected trees, seedlings and other propagation materials to prevent dangerous diseases, insect pests and harmful plants and seeds from being introduced into the area. ② Whitefly prevention and control. In the early stages of whitefly occurrence, you can use a spray of 1,500 times the amount of diplomethrin EC to kill eggs, nymphs, and adults, or add a small amount of 2.5% deltamethrin 5mg/kg to 1,500 times the 25% solution of deltamethrin EC, and the killing effect is excellent. . ③Scale insect control. In the nymph stage, use 1500 times malathion solution or 2.5 deltamethrin 20mg/kg solution to spray to kill, once every 7 to 10 days, twice in a row, the control effect is good.
Osmanthus fragrans is a green seedling with ornamental, edible and economic value. Its planting method is simple and can be cut, transplanted or grafted. The above is the cultivation method and management technology of golden osmanthus compiled by the editor for your reference.