Ping An tree (Lanyu cinnamon) is not only a beautiful potted foliage plant, but also a very beautiful garden tree. At present, it is popular in the market and has broad prospects. So how is Ping An tree cultivated? What are the good methods in breeding? What should we pay attention to in breeding? Please read with me with questions!
Breeding methods of Ping An tree (basic knowledge): the best breeding time: the breeding time of Ping An tree is from April to may in the first half of the year, from September to October in the second half of the year, and the temperature is 22 ℃ to 28 ℃.
The best growing soil: potted or bag cultivated Ping An tree (Lanyu cinnamon), it is appropriate to use fertile acidic culture soil or rotten leaf soil with loose air permeability, smooth drainage and rich organic matter.
Growth humidity requirements: Ping An tree likes humid environment and is not resistant to drought. Its basin soil should be kept relatively wet. Spray water on its leaves in dry weather. Spray water on its leaves once a day in summer, and maintain indoor relative air humidity, preferably more than 60%.
Optimum growth temperature: the suitable temperature for the growth of Ping An tree is 20 ℃ to 30 ℃. Small trees are not resistant to low temperature. In case of frost for more than 5 days, plants maintained or cultivated in the open field are easy to cause freeze cracking of bark, withering of branches and leaves, and even freezing death of the whole plant. Whether it is a small number of family potted plants or large-scale production and operation cultivation, the greenhouse temperature of no less than 5 ℃ should be maintained in winter, so that its leaves can always maintain the beautiful state of green.
Best growth light: Ping An tree not only likes sunshine, but also is shade resistant, but it cannot be exposed to the sun. Especially in summer, it needs to be sheltered, about 50% of its area, otherwise the sun may burn the leaf surface. In winter, it can be in direct contact with the sun without shelter.
Green Ping'an tree precautions for breeding Ping'an tree: fertilizer application: Ping'an tree can apply thin cake fertilizer water or fertilizer alum water once a month from mid spring to early autumn. After autumn, phosphorus and potassium fertilizer should be applied twice continuously, such as 0.3% potassium dihydrogen phosphate solution, so as to increase the cold resistance of the plant, promote the early lignification of the young shoots and make them survive the winter safely. All forms of topdressing should be stopped in winter to prevent fertilizer damage to the root, resulting in leaf yellowing or scorched and falling off, otherwise it is difficult to restore the original appearance of the plant.
Watering points: an Shu likes humid environment and is not resistant to drought. The basin soil should be kept relatively wet. The watering frequency depends on the season, and it can be watered when the topsoil is a little dry. Spray water on leaves in dry weather and once a day in summer. Ping An trees should be watered after autumn, and more water should be sprayed and less watered in winter. If there is water in the basin soil, it is easy to cause plant yellowing.
Breeding points: Ping An tree (Lanyu Cinnamomum cassia) is mostly cultivated by sowing method. Mature purple black fruits can be used for sowing in South China from September to October. After the crack of seed grain is exposed, it can be sown in the ground or bag. Seeds without sand storage can be soaked in 0.3% formalin solution for 30 minutes before sowing, pour out the excess solution, seal it for 2 hours, rinse off the solution attached to the seed coat with clean water, and then soak the seeds with clean water for 24 hours to improve their germination rate. If the seeds are not disinfected, the seeds can be directly soaked in warm water at about 40 ℃, which can also improve the germination rate. Generally, it is dominated by ditching and on-demand sowing, with row spacing of 20 cm to 25 cm, plant spacing of 5 cm to 7 cm, soil covering thickness of 1.5 cm to 2 cm, covered with straw to moisturize, and germinate after 20 to 30 days. Keep the seedbed moist. After 1 / 3 seed grains are unearthed, remove the grass cover twice to three times, and then put up a shed for shade. When the seedlings grow 3 to 4 true leaves, liquid fertilizer can be applied once a month, stopped after autumn, do a good job in cold prevention, and overwinter at a shed temperature of no less than 5 ℃.
Pruning Essentials: Ping An trees are pruned in spring. When the temperature is 20 ℃, some branches are cut short to increase the number of branches. However, it should be noted that during pruning, the distance from the cutting mouth to the internode bud should be larger, otherwise the branches will wither due to water loss. In addition, the cut must be smooth without tearing. In the process of vegetative growth, timely coring and promoting multiple branches can avoid plant shape imbalance. Practice has proved that timely coring is better than pruning when maintaining Ping An trees in the north.
Pot soil replacement: Ping An trees should loosen the soil once a month during the growing season of potted Ping An trees to always keep their roots in a good state of permeability. Small Ping An trees can change the pot once a year, while large Ping An trees can change the pot once 2 ~ 3 years. When changing the pot, some broken and dead roots can be cut off before to ensure the normal growth of potted plants.
Pest control:
Leaf curler: it mostly occurs in summer and autumn. It curls several new leaves into nests. The larvae lurk and feed on the leaves. It can be sprayed with 800 times of 90% trichlorfon crystal or 100 times of 40% dimethoate emulsion.
Aphids: the young leaves and new buds of Cinnamomum cassia on Lanyu are prone to aphid stinging harm, resulting in greasy leaves, and then induce coal pollution disease, affecting plant growth, display and viewing. Control method: after spreading plant ash on the plant, wash it with clean water; Spraying Melia azedarach leaf juice can effectively kill insects; Spray with 10% imidacloprid wettable powder 2000 times.
The experience of breeding Ping An tree is shown in the Ping An tree outside the window: when breeding Ping An tree, we should pay attention to moderate light at ordinary times. When it is placed in the sun in summer, it needs to be covered, about 50% of its area should be covered, otherwise the sun may burn the leaf surface. The temperature should be kept between 20 ℃ and 30 ℃.
Fertilize every other month except in winter, which may hurt the rhizome. Ping An tree will suffer from anthrax, which will make the leaf surface, leaf tip and leaf edge brown. When it is found, in addition to timely removing the diseased leaves, phosphorus and potassium fertilizer should be applied to improve the plant's ability to resist diseases and pests. In rainy weather, prevent ponding in the basin, otherwise it may damage the rhizome.