How much is the price of Astragalus membranaceus per jin? Attached cultivation techniques

Astragalus membranaceus, also known as Mianqi, mainly grows in Gansu, Shanxi, Inner Mongolia, Heilongjiang and other places. Now, due to a large number of human mining, resulting in a substantial reduction in the number of wild Radix Astragali, so most of the market is artificially planted. How much is the price of Astragalus membranaceus? What are the key points of cultivation techniques?

How much is the price of Chinese herbal medicine Astragalus membranaceus per jin?

Recently, the price of Radix Astragali has an upward trend, and there are some differences in prices in different regions. For example, the price of astragalus produced in Inner Mongolia is about 8.5-10 yuan / jin, and that of astragalus produced in Gansu is about 6.5-8.5 yuan / jin.

2. Key points of cultivation techniques of Radix Astragali

1. Land selection and preparation

Astragalus membranaceus is a deep-rooted plant, flat land cultivation should choose high-dry, good water, loose and fertile sandy loam, mountain area should choose deep soil layer, good drainage, leeward to the sun hillside or wasteland planting. The water table is high, the soil moisture is high, and the texture is tight; low-lying clay or barren gravel soil are not suitable for planting. After selecting the land, it is better to turn the land in autumn, generally ploughing 30 to 45 centimeters, combined with the application of basic fertilizer, applying 2500 to 3000 kilograms of farm manure per 667 square meters, spring ploughing and ploughing should pay attention to soil moisture conservation, and then rake fine leveling, border or ridging.

2. Methods of reproduction

Change the water temperature and soak the seeds. A few days before sowing, soak in 40 ℃ warm water during the day, change cold water at night, treat it continuously for 3 days and nights, remove it and put it into a pot, cover it with a wet cloth and put it in a warm place to accelerate germination. 3 Mel can germinate in 4 days, and then sow seeds. You can also quickly stir the seeds in boiling water for 1 minute, immediately pour into cold water, cool the water temperature to 40 ℃, soak for 2 hours, pour out the water, cover the wet sack for 12 hours, and sow when the seed expands or the outer skin breaks.

Mechanical damage. Mix 1 part of fine river sand and 2 parts of seeds evenly, place them on a medium-sized mill and spread them with a thickness of 4 cm. Grind until the seed coat is burr. After grinding, the seeds were screened, soaked in 20 ℃ warm water for 1 day, piled in a warm place, germinated in about 5 days, and then sowed. Be careful not to overcrush the seeds.

Sulfuric acid treatment. For mature and hard seeds, soak them in 70% of 80% sulfuric acid solution for 5 minutes, remove them and rinse them in running water for half an hour, or wash the residual sulfuric acid on the seeds with clean water for many times, then sow them a little dry, and the germination rate can reach more than 90%.

3. Sowing method

Hole broadcast and strip broadcast are used as usual. Hole sowing, shallow holes were opened according to the row distance of 30 cm × 25 cm, 7 seeds were sown in each hole, the thickness of covered soil was 2 cm, and the seed amount per mu was 1ml 1.5 kg. Strip sowing, open the horizontal trench on the border surface according to the row spacing of 40 cm, and the ditch depth is 3 cm. When sowing, mix the seeds with grass ash and organic fertilizer, spread them evenly into the ditch, cover the fine soil 1m / 2cm after sowing, and compact slightly.

4. Field management

Irrigation: keep the soil moist before emergence, less watering after emergence, more loosening soil, promoting root binding, watering in the morning and evening. If it suddenly clears up after heavy rain at noon, it should be drained in time.

Ploughing weeding and topdressing: after the seedlings come out in the same year, you can loosen the soil and weed, usually for 2 or 3 times. When the height of the seedling is 7 cm and 10 cm, the seedling is thinned, and the plant distance is 15 cm to 20 cm. After that, the soil and weeds were loosened and weeded every year during the growing period, depending on the soil consolidation and the growth of weeds. Sowing 1-year-old 2-year-old Radix Astragali grows vigorously and the root develops rapidly, so it can be combined with ploughing and weeding to apply phosphorus and potassium fertilizer properly.