How to plant osmanthus seedlings
In detail, for netizens who are concerned, this article explains how to plant osmanthus seedlings and the planting methods and green plant maintenance experience of golden osmanthus. The following editor will provide you with a detailed explanation
1 Planting Methods and Techniques
1.1 Planting Methods
Planting golden osmanthus, whether large trees or small seedlings, the pit planting method is the best. For urban greening, the spacing can vary depending on the green area, with a minimum spacing of 5m.
1.2 Land Preparation and Hole Digging
Currently, although the cultivation area and quantity of golden osmanthus are relatively large, the market still cannot meet the demand, so it should be planted one plant and keep it alive. This makes comprehensive land preparation one of the key links. During land preparation, the planting holes should be dug, and the size of the holes depends on the size of the trees and soil balls. When digging holes, the soil should be dug to the perimeter of the pit and exposed to sunlight, and stacked separately according to the upper and lower soil layers. After winter rain and snow, the soil is promotes weathering and covered with soil,破碎 the surface soil, and backfill it to the bottom of the pit. Then, fill the soil to 1/2 or 3/5 of the depth of the hole. After the trees are placed in the hole and "positioned," not only can the survival rate of the trees be improved, but it is also beneficial for the recovery of the underground and above-ground parts of the trees. The key points are: detailed land preparation, deep and large holes.
1.3 Planting Time
Golden osmanthus should be planted in early winter or early spring, and it can also be planted in early summer, but it should not be planted in the hot summer. If weather conditions allow, planting in summer and autumn is also feasible. The key is that in areas with severe winter cold, do not plant in winter, as cold temperatures can easily cause tree roots to lose water and die. When planting a large area or a large number of golden osmanthus, try to dig, transport, and plant immediately to improve the survival rate. The key points are: avoiding extreme heat and preventing frostbite.
1.4 Seedling Pruning
When the seedlings are transported to the construction site, technical personnel should immediately carry out pruning and shaping. The key points of pruning are: pruning inside and outside; pruning the top and bottom, removing damaged parts for health, and ensuring tidiness when looking left and right, and roundness when looking up and down.
1.5 Planting
The pruned trees can be placed in the planting holes, with the depth of the soil ball being 1/2 or 3/5 of the hole depth. After the trees are placed in the hole, cover the soil, tamp it down, and water it. Then, cover the soil again, press it down, and water it again. Finally, shape the tree basin into a "steamed bun shape, pot bottom shape" to facilitate watering and drainage and improve survival rates. The key points are: shallow planting, tamping, straightening, and raising.
1.6 Tying and Moisture Retention
When transporting trees, the soil ball and main stem must be tied with straw rope to prevent root and bark damage. After planting, wrap the main stem with plastic film or anti-freeze cloth again to prevent the bark from losing water, which serves as a moisture retention and sun protection function. The key points are: tie from bottom to top, dense and tight.
1.7 Support to Prevent Toppling
To prevent the trees from being blown over by strong winds and affecting their survival, they need to be supported. The specific method is to use wooden stakes with a diameter of 3-5cm at the small end and a length of 180-350cm. Then, according to the length of the support, mark the tree stem position and place the top of the triangular support at this position. Use 2-4mm iron wire to securely fix the top of the support to the tree stem. The principle of triangular support is: durable material, not injuring the bark; neat appearance, firm and effective. If the diameter of the golden osmanthus trunk is 4-10cm, the "K" shape support can be used. The key points are: deep stakes, strong beams, and not injuring the bark.
1.8 Watering and Covering Soil
When the soil is filled to 1/2 or 2/3 of the tree's soil ball, it should be watered to make the "native soil" of the soil ball integrate tightly with the guest soil. When the soil is in place, water thoroughly again, and finally shape the tree basin into a "steamed bun shape, pot bottom shape."
2 Management Tips
1.1 Loosening Soil and Weeding
Loosen the soil once in summer and autumn, with a depth of 10-15cm. The number of loosening times can be combined with weeding. Weed at least 4 times a year, depending on the density and growth of the weeds. The principle is: remove early, small, and completely, moderately loosen the soil.
2.2 Fertilizing
No fertilization should be done in the first year after the seedlings survive. In the second year, fertilize in early spring with a moderate amount of foliar fertilizer, using compound fertilizers as appropriate. The principle is: "eat less and more often."
2.3 Frost Prevention
Currently, common methods include wrapping the stems with straw rope and plastic film, and winter watering (irrigation).
2.4 Control of Harmful Organisms
① Material Quarantine. In the selection of trees and other propagation materials, it is necessary to carry out origin quarantine on the selected trees, seedlings, and other propagation materials to prevent the introduction of dangerous diseases, pests, and harmful plants and seeds into the region. ② Whitefly Control. In the early stage of whitefly occurrence, you can use dichlorvos emulsion spray to kill eggs, nymphs, and adults, or add a small amount of 2.5% deltamethrin (5mg/kg) to 25% dichlorvos emulsion 1500 times solution for excellent control effect. ③ Scale Insect Control. In the nymph stage, use malathion 1500 times solution, or use 2.5% deltamethrin 20mg/kg solution spray for control, once every 7-10 days, for 2 consecutive times for good control effect.
The above sharing on how to plant golden osmanthus seedlings and the planting and management methods of golden osmanthus, hope it is helpful to you!