Campanulaceae, also known as bellflower, soil ginseng, is a perennial rooted herb, suitable for humid climate, strong cold resistance, root medicine, can be used for medicine and food. In recent years, it has become a popular commodity in the market. The main points of its main cultivation techniques are as follows: First, soil preparation should be conducted with sufficient sunlight, deep soil layer, and fertile loose sandy soil or loam soil with high organic matter content. Before planting, it should be deep-turned 30 centimeters, except for the net weeds. The rake should be about 1 to 2 meters wide, 2500 kilograms of earth-fertilizer per acre, 50 kilograms of superphosphate, and 30 kilograms of potassium sulfate compound fertilizer. Second, sowing seed can be seeded in spring and autumn. Spring sowing can be in the 2 - 3 months, autumn broadcast should be carried out in October. When seeding, the seeds and sand were mixed and drilled. After sowing, the soil was covered and slightly suppressed. The sowing volume is 1--2 kilograms per mu. In order to promote the emergence of early seedlings, conventional seed soups can be used to sow germination before sowing. Soaking generally for 4 - 5 days, seeds can be sown after germination. Third, the field management seedling height of 3 - 4 cm, according to the spacing of 100 cm around the seedlings. In the growing season, weeding can be carried out 3 times. The first time it should be when the seedlings are 3 - 4 leaves, and it can be followed by the weeds. When the field seedlings are 10 to 12 cm tall, the top buds are removed to facilitate germination of lateral buds and promote more flowering results. When the height of seedlings is 20-30 cm, 20 kg of urea can be applied per acre and 30 kg of superphosphate can be used as top dressing. Fourth, the prevention and treatment of plant diseases and insect pests on root rot, before sowing can be used per acre 5 kg carbendazim soil disinfection, and pay attention to field drainage and ventilation. In the early stage of onset, spray with 70% thiophanate-methyl or 50% carbendazim 800 times, spray once every 10-15 days, and spray 2 - 3 times. Spot blotch mainly damages the leaves and can be sprayed with 50% carbendazim 800 times or Bordeaux mixture. The main pests are ground tigers, red spiders and aphids. For ground tigers, bait can be killed by poison baits, and 40% Dimethoate EC can be sprayed on spider mites and aphids for 1500--2000 times. V. Harvesting and processing Seeds can generally be harvested from September to October when the seed is ripe, placed in a dry and well-ventilated place, dried naturally for 3 to 5 days, and then threshed. After the second and third years of sowing, the roots can be harvested. The rooting season is early spring before germination and late autumn and early winter. After the aboveground part withers, remove the aboveground parts, dig out the whole roots, wash them with clean water, scrape off fresh skin, and then wash. Net dry or dry to 6--7 dry, smoked with sulfur for about 10 hours, and finally dried.
YT-H711
YT-H711
Shenzhen Sunshine Technology Co.,Ltd , https://www.shenzhenyatwin.com