Cedar, also known as cedar, is native to the Himalayas and is distributed in southern Tibet, India, and Afghanistan. The shape of cedar is quite special, with a spire-shaped crown, with large branches flat and small branches slightly drooping. The leaves are needle-shaped, hard, gray-green or silver-gray, scattered on long branches and clustered on short branches.
Cedar fertilization; generally from mid-June, topdressing once every 5-10 days, fertilizers include ammonium sulfate, superphosphate or nitrogen, phosphorus, potassium compound fertilizer. Top dressing should be sprayed with diluted fertilizer. Stop top dressing after mid-August. Thinning: After the seedlings are unearthed, in order to adjust the growth space and cultivate high-quality strong seedlings, thinning is required. The thinning is generally carried out in June, and there are 1-2 strong seedlings in each container. The seedlings under the question can be transplanted. According to the experience of the Mudanjiang Forest Management Bureau, the survival rate of transplanting is 85% to 99%. The seedlings transplanted in the cedar greenhouse were as high as 13M this year, and the ground diameter was 0.25M.
Because the cedar seedlings have the characteristics of developed main roots and scarce lateral roots, in addition to the large afforestation area, a large amount of seedlings is used. Moreover, there are some high-yield forests where the transportation is not convenient enough. Therefore, the cedar seedling container should be selected according to the principle of small size and convenient transportation, but does not affect the growth of seedlings. It is more suitable for low mountains and hilly land far away from residential areas, generally at the foot of afforestation mountain or mountainside close to the water source, choose a nursery with good soil structure and fertility, and loosen the soil, beating, silicon and base on the spot. Bricks, mainly for cultivating hundred-day seedlings, with specifications ranging from 5cm to 5.5cm wide and 11M high