The breeding method of the latest safe tree

Ping an tree, formerly known as Lanyu cinnamon, alias Hongtouyu cinnamon, Hongtoushan cinnamon, Fanglan mountain cinnamon, big leaf cinnamon, Taiwan cinnamon, etc., is a small evergreen tree of Cinnamomum camphora, which is widely produced in southern Taiwan. The main propagation methods are sowing and cutting propagation. Let's take a look at the breeding methods of Ping an tree.

Sowing and Propagation of safe Tree

1. Sowing time: safe trees can be sown and propagated in South China with ripe purple-black fruits from September to October. After washing off the peel and pulp, the empty seeds are floated and spread out in a cool place to dry.

2. Seed treatment: if the seeds of Ping an tree cannot be sowed immediately because of bad weather or the nursery is not ready, the seeds should be stored in wet sand and placed in a cool place to prevent the seeds from getting moldy. After the seeds are exposed, sow or bag sowing. For seeds that have not been germinated by sand storage, soak the seeds with 0.3% formalin solution for 30 minutes before sowing, pour out the excess liquid, seal it for 2 hours, rinse with clean water to remove the solution attached to the seed coat, and then soak the seeds with water for 24 hours. The germination rate can be increased. If the seeds are not disinfected, the seeds can be soaked in warm water of about 40 ℃, and the germination rate can also be increased.

3. Sowing method: usually ditch-on-demand sowing, row spacing 20 cm to 25 cm, plant spacing 5 cm to 7 cm, soil thickness 1.5 cm to 2 cm, covered with straw moisturizing, 20 to 30 days after germination.

4. Post-sowing management: keep the seedbed moist, uncover the grass 2 to 3 times after the seeds are unearthed for 1 / 3, and then set up a shed to cover the shade. When the seedlings grow 3 to 4 true leaves, liquid fertilizer can be applied once a month, stop after autumn, do a good job of cold prevention, and survive the winter at a greenhouse temperature of not less than 5 ℃. Because of its few fibrous roots, transplanting should be carried out as soon as possible, or sprouting in sand bed, bud seedling transplanting in bag, and bag sowing or bag planting in the south, the effect is very good.

Cutting Propagation of Ping an Tree

1. Cutting time: the best time for Ping an tree cutting is from April to May in the first half of the year, from September to October in the second half of the year, and from 22 ℃ to 28 ℃.

2. Cutting substrate: nutrition bowl or flowerpot was used in Ping an tree cutting. the substrate was pure vermiculite or vermiculite ∶ peat = 1 ∶ 1. The substrate should be disinfected before cutting, and can be infused or exposed with 0.1% potassium permanganate or 600 to 800 times solution of dimethazone.

3. Cuttings treatment: cuttings should choose branches with strong top dominance, semi-Lignification in the same year, strong and full, no bacterial infection and bright green leaves. It is best to cut cuttings into 10 cm to 15 cm long with dew or shade in the morning, leaving 2 to 3 leaves to reduce water loss. Leave 3 cm to 5 cm at the lower end of the cuttings to make an oblique cut.

4. Cutting method: soak the base of the cut cuttings 3 cm to 5 cm in the rooting solution (2.5 grams mixed with water 2 kg, slowly soaked for 2 to 3 hours, quickly soaked in 0.2 kg water for 15 to 30 seconds) or soaked in a strong rooting agent (5 grams per bag mixed with 0.5 kg water, soaking the base for 16 to 20 hours). After soaking, remove and insert into the substrate 3 cm to 5 cm. Too shallow is easy to lodge, too deep is easy to mildew, and then compacted with fingers. One seedling should be cut in each small basin, and the cuttings should be watered thoroughly until water flows out from the bottom of the basin. Wrap the whole cutter in a plastic bag, keep 100% humidity and keep it in a cool place to avoid direct sunlight.

5. Plug-in management

① watering: watering once about 4 days after cutting, in the north, drop a few drops of hydrochloric acid or a few drops of edible vinegar every time, keep pH5.8 around, the cuttings are easy to survive. When the humidity of the substrate is high, it is not watered, but the substrate should be kept moist, and the relative humidity of the environment is about 80%. Less watering, cutting seedlings died of drought, watering too much, will cause wound tissue mildew.

② lighting: about 15 days to tie the plastic bag, about 20 days to remove the plastic bag, remove the plastic, sooner or later can increase the weak sunlight time, 25 days later begin to take root, a month or so can grow 1 cm to 2 cm long new root, 2 months can grow 5 cm to 6 cm long root.

③ soil: the old leaves do not fall off and new roots are produced, indicating that the cuttings survive. Large pots should be poured during this period, and the proportion of matrix is rotten leaf soil and spun yarn or sandy loam. When pots are poured, the cuttings are pulled up with substrates, planted in large pots, filled with matrixes and watered thoroughly.

④ fertilization: after a week, the concentration of compound fertilizer 1 ‰ can be applied. After the new leaves are drawn, the plant can be irrigated with thin cake fertilizer water once a month, and 0.3% potassium dihydrogen phosphate solution can be applied twice after autumn, so as to increase the cold resistance of the plant and promote the young shoots to be lignified as early as possible, so that they can survive the winter safely. Fertilizer application is forbidden to apply raw fertilizer, thick fertilizer and large fertilizer, especially to prohibit the high concentration of chemical fertilizer, otherwise it is very easy to cause fertilizer damage to burn roots, resulting in yellowing and scorching of leaves and plant death.

The Culture method of Ping an Tree

1. Temperature: ping an tree likes the hot and humid environment, the best temperature is 22 ℃ to 30 ℃. When the temperature is more than 32 ℃, it is necessary to build a shed to shade and spray water on the leaves of Ping an tree to humidify and cool down, so that it can maintain exuberant growth. The lowest temperature in winter should not be lower than 5 ℃.

2. Watering: ping an trees like wet soil and water appropriately every morning and evening. In winter, you should spray more water and less water. There can be no stagnant water in the basin.

3. Light: ping an tree needs better light, but it is more resistant to shade. It is suitable for the maintenance of semi-overcast environment, and its light demand varies with age. if the light is too strong, it is easy to cause leaves to yellowing and lose mind, and reduce its due ornamental value.

4. Fertilization: fertilize Ping'an trees once a month. After autumn, phosphate and potassium fertilizer should be applied twice continuously. In winter, all forms of topdressing should be stopped to prevent fertilizer from harming the roots.

5. Soil: small plants change pots once a year, large plants change soil once every two years, loosen the soil once a month in the growing season, turn the basin and change soil time, preferably in spring.

6. Diseases and insect pests: aphids are easy to grow on the young leaves and new buds of Ping an tree. after spreading plant ash, rinse with clean water and spray neem leaf juice, which can effectively kill insects and kill with 2000 times of imidacloprid wettable powder.