The camphor tree, evergreen tree, has a majestic tree posture, a large tree crown, a natural and soft tree, and a dense green season. As a result, it is widely used as an urban tree, tree, shelter forest, and scenic forest in urban greening; It is characterized by dense wood, aroma, and insect-resistant cockroaches, which can be used for construction, furniture, and musical instrument production. It has high economic value and has a large market demand.
(1) Seed and seed production should be selected from camphor trees aged over 25 years. Before and after November of each year, when the fruit matures into purple-black, timely harvest, soak in water for 3-4 days, and then wash to remove peel, then use plant ash water. After soaking for one day, wash and dry the shade, and finally use a bag for storage or stratification until the second spring sowing.
(2) Laitian is selected as the seedling for the former seedlings. One month before sowing, the manure compost will be 3,000 kg per mu, and then it will be ploughed and turned to be used.
(3) When sowing is done in February-March, when the ground temperature reaches around 5°C, it can be planted. Pre-seeded seeds were pretreated: soaked in 0.5% potassium permanganate for 2 hours and then soaked in warm water at 50°C for 3 days. This will allow budding about 10 days in advance and will be neat. Seeding sowing method: open 3-5 cm deep ditch, spacing 20 cm, each seed spacing 3-5 cm, covering the thickness of about 2 cm, cover soil should not be too deep.
(D) Bed soil management The bed soil should be properly watered, and the soil should maintain a certain humidity before emergence, and it can emerge in about 20 days. Seedlings of 3 or 4 true leaves (about 4-5 cm in height) were transplanted for the first time. A seedling tray with a hole diameter of 42 mm and a depth of 50.72 mm was used to move the seedlings into soil with a little pressure. In fact, if the seedbed is relatively dry, it can be properly watered the day before transplanting to facilitate seedlings. Move the seedling plate of the good seedlings under the shade net and concentrate water and fertilizer management to ensure the bottom of the disc is moist. A small amount of manure can be applied after one week, and the second time the seedlings are transplanted in about 50 days. Move the seedbed to choose a field with better fertility. Control the water for the seedlings one week before transplanting. The amount of watering is half the normal amount. One foot of water should be poured the night before the transplant, and the other day after 4 pm, transplanting or selecting yin. Transplantation. Soiled seedlings were planted from plug trays, planted at a spacing of 15 cm and spaced 25 cm apart. After the plants were planted, they were shaded with shade nets, and water was poured in a timely manner. After two weeks, the seedlings were completely wilted and began to pour the appropriate amount of thin manure. Water, weeding the soil regularly, and timely removal of low shoots to promote trunk growth. A big fertilizer is applied in October. In the second half of November, anti-freezing is carried out in scaffolding. The material is used as waste film or grasshopper, bamboo bow and so on. The height of the shed is not suitable for crushing young seedlings, while rice straw is covered between the seedlings for safe wintering. The seedlings up to 50-60 cm in height that year. In the third spring, the young seedlings were transplanted for the third time. The spacing of the seedlings was 50-60 cm. When transplanting, the soil should be soiled and a small amount of weak branches should be trimmed. In management, attention should be paid to pest control, fertilization, and removal of lateral buds. Before the arrival of the cold, antifreeze was tied with straw. When the plant is up to 2 meters in size, the size of the soil can be determined by using large scales, and part of the roots can be cut off to promote the growth of lateral roots, so that there is a high survival rate when sold.
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