Basic requirements: Artemisia annua belongs to Millet and Artemisia annua of Compositae. The plant height is above 40- 150 cm, and the whole growth period is about 120 days. Love humidity, avoid drought, fear of waterlogging, and have sufficient lighting requirements. Artemisia annua has high medicinal value, and artemisinin derivatives can produce many series of drugs. Artemisinin is mainly used to treat malaria and tuberculosis, hot flashes, heatstroke, skin itching, urticaria, seborrheic dermatitis and mosquito killing. The whole herb is used as medicine, washed, fresh or dried. Artemisia annua is easy to manage, with short growth period, less investment and quick effect. The main points of its production and cultivation techniques are as follows:
Seedling heel into:
Choose fields with sufficient water resources and plant them in boxes. The width of carriage is required to be 1.2m, and the heel row spacing of standard factory building is 10- 15cm. Strengthen fertilizer and water management after transplanting. You can use decomposed human waste urine or 5 kg compound fertilizer per mu to flush and spray the waste water, so that you can apply it sparingly and diligently. It takes about 18-20 days for the heel to enter (about 25-30 days when the temperature is low). When the plant grows to 10- 15 cm, it can be moved to the field for planting.
Honda prepares:
Honda should choose fields with guaranteed water sources for drainage and irrigation. After deep ploughing, the pear rake and the soil were broken. 2,000-2,500 kilograms of decomposed farm manure or soil miscellaneous manure are applied per mu, and 50-60 kilograms of phosphate fertilizer is used as base fertilizer. Ditching and planting. The specifications of the trolley are: width 1.2m, ditch width 0.4m, ditch depth 0.2-0.5m, two rows for each trolley, and the spacing between plants is 0.8× 0.8m. ..
Timely transplantation:
When the heel of the seedling reaches 10- 15 cm, transplant it in cloudy or sunny afternoon. After planting, water enough to root. It can be planted at a reasonable density, about 0/000 plants per mu/kloc.
On-site management:
move
Field management should be strengthened after planting. Scientific fertilization and reasonable irrigation and drainage should be achieved. Fertilization can be divided into three stages. The first stage: about one week after transplanting, lightly apply compound fertilizer or farmyard manure. Compound fertilizer per mu 10- 15 kg or compound fertilizer 0.3%.
Spraying compound fertilizer. The second stage: 15- 20 days after transplanting, apply about 35 kilograms of compound fertilizer or decomposed farmyard manure per mu, and then re-cultivate the soil. The third stage: after 35-45 days of transplanting, 50 kilograms of compound fertilizer is applied per mu.
Or farmyard manure, combined with soil culture. When planting in the field, it is necessary to prevent waterlogging, pay attention to eliminating waterlogging in rainy season, and irrigate in time during drought.
Pest control:
Disease: The main disease of Artemisia annua is stem rot. In the rainy season, if stem rot occurs, mirex or thiophanate can be used to control it.
Pest: The main pest of Artemisia annua is aphid, so it should be sprayed before its migration and diffusion, with 40% dimethoate or 20% chlorpyrifos or chlorpyrifos.
Timely harvest:
The most vigorous growth period of Artemisia annua is bud stage. Choose a sunny day, cut off the main pole and bask in the ground for a day. The next day, it was put on the threshing floor to dry, and its cotyledons were knocked out. Cotyledons continue to dry and can be sold if they meet the acquisition conditions.
References:
Baidu encyclopedia.