When to plant Cinnamomum camphora seedlings
A comprehensive explanation of when to plant Cinnamomum camphora seedlings and the planting time and methods for Cinnamomum camphora cultivation, the following is an introduction for you in detail
Cinnamomum camphora propagation methods include seeding and cutting, adapting to altitudes below 1800m, absolute minimum temperature: -0.00°C, Cinnamomum camphora prefers light, slightly shade-tolerant; prefers warm and humid climate, not cold-resistant, not strict soil requirements, best in fertile and permeable sandy soil. It is relatively tolerant to waterlogging but not to drought, barren and saline-alkali soil. The main root is developed, deep-rooted, wind-resistant. It has strong germination and pruning tolerance. The growth rate is moderate, the tree shape is huge like an umbrella, providing shade and coolness. It has a long survival period, can grow into thousands of years of towering ancient trees, and has strong abilities in smoke and dust retention, water conservation, soil consolidation and sand prevention, and environmental beautification! In addition, it is resistant to sea breeze, smoke and dust, and toxic gases, and can absorb various toxic gases, and is relatively adaptable to urban environments.
In order to ensure the survival rate of planting, the following issues should be paid attention to and corresponding technical measures should be taken during the planting process.
I. Planting cultivation
1. Planting time
Generally from mid-March to mid-April, in the spring before the sprouts are about to germinate. Supplementary planting can be done during the plum rain season. September is suitable for autumn. In areas with little frost or more rainfall in winter, winter planting is also possible. Planting should be timely, that is, the pruned Cinnamomum camphora seedlings should be planted immediately. If the transportation distance is far, the rootstock should be wrapped with wet grass, plastic film, etc., to keep it moisturized. The best planting time is before 11 am or after 4 pm, and in winter, just avoid the coldest days.
2. Planting
The planting hole should be dug according to the general technical procedures, with the depth, length, and width of the hole reaching 50-60 centimeters, and the bottom of the hole should be fertilized and covered with a fine soil cushion. The planting soil should be loose and fertile. Remove the wrapping material from the Cinnamomum camphora seedlings, and the planting depth should be such that the ground is level with the root collar of the seedling. When planting, the root soil should be closely connected with the hole soil, and loose or unconsolidated backfilling will cause voids. Plant the seedling upright in the planting hole, compact the soil after filling, and continue filling until the top of the hole. Finally, make a water-retaining dike around the seedling.
3. Watering
After the Cinnamomum camphora seedlings are planted, they should be watered immediately. For seedlings with soil balls, stir the soil around the planting hole with iron or wooden rods while watering, so that the soil around the hole can be filled through the action of water. When watering, be careful not to damage the soil dike, and fill the dike with water to let it slowly seep into the planting hole. To further improve the survival rate of planting, growth hormones can be added to the water to stimulate new root growth. The growth hormone generally used is naphthyl acetic acid, which is first dissolved in a small amount of alcohol and then mixed with water to make a 200PPm solution for灌溉. This solution is used as the first root-forming water. Whether planting Cinnamomum camphora in sunny or cloudy days, it is necessary to water thoroughly once. In dry and exposed weather, water every 7 days. Continuous 3-4 times is enough.
4. Special technical treatment
During the transplanting process, to maintain the humidity of the trunk and reduce the moisture evaporation from the bark, the trunk should be wrapped with wet grass rope from the bottom to the top of the main trunk, and larger branches should also be wrapped. Then, thickly apply mud slurry to the trunk wrapped with grass rope. Afterwards, the trunk can be regularly sprayed with water to keep it moisturized. After digging up the large Cinnamomum camphora, the broken, damaged, and withered roots should be pruned, and then the roots are soaked and wrapped in mud slurry; if 0.03% of naphthyl acetic acid growth hormone is added to the slurry, it can promote the growth of new roots after large Cinnamomum camphora transplantation.
5. Management and maintenance
Since Cinnamomum camphora is planted in an unsuitable off-season, it is even more important to strengthen maintenance management after planting. Normally, pay attention to watering, and follow the principle of "no watering when not dry, and water thoroughly when watering"; also regularly spray water on the ground and leaves of Cinnamomum camphora to increase air humidity and reduce plant transpiration.
II. Transplanting methods
1. Root pruning and root promotion For seedlings with a diameter of less than 10 centimeters, only the conventional requirement of digging soil balls for transplanting is needed, usually with a soil ball diameter of about 5-6 times the diameter of the main trunk, while for large seedlings with a diameter of more than 10 centimeters, root pruning and root promotion should be performed first. The specific method is: dig a slot on the two sides opposite to the main stem, at a distance of 2-2.5 times the diameter of the trunk, and saw or cut off the thick lateral roots with a sharp ax, with the cut surface must be flat. Smaller lateral roots can be cut with pruning shears, then covered with fine soil to allow fine roots to grow near the cut ends in the same year, and the operation is repeated on the uncut root sides in the second year, and the seedlings can be lifted in the spring of the third year.
2. Trunk cutting and branch reduction For smaller seedlings, 1-2-year-old ones do not need to be pruned, 3-6-year-old seedlings should be pruned by 1/3, usually pruning the lower 1/3 of the lateral branches on the main stem and pruning the upper 2/3 of the lateral branches in layers, while larger seedlings should be pruned comprehensively. Usually, the height of the street tree trunks is controlled at 3-3.5 meters, and the thick lateral branches are retained at 0.3-0.5 meters. After cutting, the cut ends should be sealed with wax or wrapped with plastic film to prevent moisture loss.
3. Ball lifting and wrapping The best time for lifting seedlings and transplanting is in March, with the soil ball being 5-6 times the diameter of the chest (30-40 centimeters for small seedlings), wrapped with grass rope to ensure the soil ball does not disintegrate.
4. Transplanting The diameter of the planting hole should be 1/3 larger than the Cinnamomum camphora soil ball, and the depth should be such that the soil ball is in the ground and the rootstock is level with the ground. After planting the tree, fill the gaps with fine soil and compact with a thick stick. When there are 10-20 centimeters left, water to absorb enough moisture, then fill the remaining soil until the base of the trunk is dome-shaped.
The introduction of when to plant Cinnamomum camphora seedlings and the specific introduction of Cinnamomum camphora planting time and methods mentioned above hope to bring some floral knowledge to green plant enthusiasts.