Second, the cultivation method of Atractylodes lancea
(1) land selection and preparation
Choose sunny barren hills or slopes, humus or sandy loam with loose, fertile soil and good drainage. Deep ploughing, applying decomposed organic fertilizer as base fertilizer, harrowing, and making border bed or ridge, with border width 1m, border height of 25cm and border length unlimited.
(2) Planting method
1. Sexual reproduction should be sown from mid-March to early April, with a sowing amount of 3-4 kg per mu. Sowing: evenly sowing seeds at the border, and covering with fine soil for 2-3 cm; Drilling: Trenching horizontally in the border with a distance of 20-25 cm and a depth of about 3 cm, evenly sowing seeds in the trench, and then covering the soil. After sowing, all the seeds are covered with grass to keep moisture, which is beneficial to seed germination.
2. In the production of asexual reproduction, the method of dividing plants is mainly adopted. In April, the roots of the old seedlings were dug up, the soil was removed and cut into several small buds, each with 1-3 buds as propagation materials.
At present, shoot tip culture is also used to raise seedlings. The method comprises the following steps: culturing shoot tips in MS agar medium containing IAA (1ppm)-BAP (1-25ppm) for about 30 days to form branches, and then subculturing in medium containing BAP(5ppm)-IAA( 1ppm) for 40-50 days.
3. Transplanted and planted seedlings are cultivated through sexual reproduction. When the seedlings are about 3 cm long and 10 cm high, transplant them.
(3) Site management
Attention should be paid to intertillage weeding at seedling stage. If the weather is dry, timely irrigation can also be combined with topdressing. Topdressing, at the same time, is generally applied three times a year, 1 time in May, and the manure is cleared, with an area of about 1000 kg per mu; The second time, at the peak of growth in June, human excrement and urine were applied, about 0/250 kg per mu/kloc, or ammonium sulfate was applied, 5 kg per mu; Before the third flowering in August, topdressing 1, 000- 1, 500 kg of human excrement and urine per mu, and adding plant ash and calcium superphosphate.
(4) Pest control
Atractylodes lancea is vulnerable to aphids in the whole growth and development process. Most adults and nymphs suck the juice of stems and leaves, which can turn the stems and leaves yellow and affect the growth and development in severe cases. Prevention and control methods: remove dead plants and fallen leaves in time, bury them deeply or burn them; In the onset period, chemical prevention should be carried out in time. Generally, 50% chlorpyrifos 1 000-2,000 times or 40% dimethoate EC1500-2,000 times should be sprayed,1time every 7 days, and spraying continuously until there are no insects.
Thirdly, the harvesting and processing of Atractylodes lancea.
1, collecting
Wild Atractylodes lancea can be excavated in spring, summer and autumn, and the quality of excavation is the best in August. The home-grown Atractylodes lancea takes two years to harvest. Atractylodes lancea is mostly excavated in autumn, and can be excavated in spring and autumn. The quality of excavation is good from autumn to early spring before excavation.