[Distribution] Native to North China and Northeast China. At present, it is cultivated all over the country, from Jilin to North China in the north, to the north of Guangdong to the north, to the north of Guangxi, to the east from the coast, and to the west of Sichuan and Yunnan. North Korea also has distribution.
[habits] hi light, but there is a certain negative resistance. Hi warm and humid climate, it is also resistant to dampness, drought, impatient, tolerate cold, ability to -25 degrees Celsius temperature. Hi well-drained and well-drenched soil, but not strict to the soil, can grow on acidic soils, neutral soils or alkaline soils, and growth can be seen in the thin soil and on dry mountain rocky roads. The salt resistance is very strong, and it can grow on the soil containing 0.2% of salt.
[breeding] Breeding with sowing, about 45,000 seeds per kilogram of seed, germination rate from 70% to 85%, sand can be preserved for 2 years. Most of the seedlings were drilled in the spring and soaked in warm water at 4050 degrees Celsius for 12 hours before sowing. They were picked up in straw bags and germinated at a warm place. Half of the seed coats were cracked and sowed, and they germinated about 2 weeks later. After the seeds germinate, the needle-like leaves emerge first, followed by the scale-leaves. After two years, they are all scale-leaves.
[Cultivation] The seedlings are transplanted 12 times, and the seedlings can reach the garden as high as 60 cm. Used for growing hedgerows or for afforestation in large areas. Platycladus orientalis is well-developed in the seedling stage and the transplant is easy to survive. In gardens, hedgerows are planted in spring, and seedlings with earthballs are mostly used. However, bare root seedlings can be used during afforestation in the rainy season, but care must be taken to protect the root system from wind and sunlight. If a hedge is cultivated, care should be taken to trim it so that the lower leaves can receive a certain amount of light, otherwise it is susceptible to aging and withering. Solitary planting trees should also pay attention to using pruning to control the canopy, keeping the lower branches intact. Common diseases and insect pests include leaf blight, coal-burning disease, rapae blight, and arborvitae tussock moths, insect moths, etc. Spring can be sprayed with lime sulfur and Pesticides to prevent it.
ã€Application】 Platycladus orientalis is one of the most widely used garden trees in China. Since ancient times, it has often been planted in temples, mausoleums, etc. In addition, because of its long life and beautiful trees, Platycladus orientalis is cultivated in many places. Commonly used in gardens for loosening, planting or planting around buildings. And because of pruning, it can also be hedgerows.
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