How to grow Scutellaria baicalensis Georgi in tonic?

Radix Scutellariae, alias Camellia root, Camellia root, etc., is a perennial herb of Scutellaria baicalensis in Labiatae, which has bitter taste, cold nature, clearing heat and dryness, purging fire and detoxification, hemostasis, calming fetus and other effects. it is a common bulk Chinese medicine and has a good planting prospect. So, how to grow Radix Astragali?

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1. Seed treatment: the seeds of Scutellaria baicalensis Georgi were soaked in 40-45 ℃ warm water for 5-6 hours or in tap water at room temperature for 12-24 hours, removed and dried, moisturized and germinated at a temperature of about 20 ℃, and then sowed when some of the seeds sprouted.

2. Sowing time: Scutellaria baicalensis Georgi is generally sown in spring from March to April and autumn from September to October. Under the condition that soil moisture is guaranteed, it is appropriate to stabilize the ground temperature of 5 cm at 15 ℃ around the middle of April. The sowing methods are scattered sowing, on-demand sowing and strip sowing, which should be shallow rather than deep.

3. Sowing method: Scutellaria baicalensis Georgi is sown with 1 kg of seeds per mu. After sowing, the seeds should be covered with fine wet soil of 2 cm. At the same time, the ground should be timely suppressed and covered to keep the soil moist until seedlings emerge.

2. Seedling raising and transplanting

1. Nursery bed selection: seedling transplanting method can be used for Scutellaria baicalensis Georgi direct seeding on hillside dry land. Seedlings should be made in warm and sunny places, either sunny beds or hotbeds, 130cm to 135cm wide, depending on the need.

2. Sowing method: 5000 kg of rotten stable manure or compost was applied to the seedling land of Scutellaria baicalensis Georgi, deep planing and fine hugging, leveling the border surface and watering the bottom water. In the first and middle of April, the germinated seeds were evenly sprinkled with wet sand, covered with 0.5 cm sifted dung soil and covered with plastic film to increase temperature and moisture.

3, seedling stage management: Scutellaria baicalensis should be properly ventilated after the seedlings, remove the film when the seedlings are 3 cm high, pull up the grass and seedlings in time. The seedlings were planted in the field according to the row spacing of 40 cm to 45 cm and the density of 25 plants per meter when the seedlings were 5 cm high and 7 cm high, and watered in time after planting.

III. Field management

The main results are as follows: 1. Intermediate ploughing and weeding: after emergence of Scutellaria baicalensis Georgi, loosening soil and weeding in the field for 3 or 4 times, weeding and weeding for 1 or 2 times according to the growth of weeds, cleaning the fields and loosening the soil before returning green in the spring of the second and third years, and about 2 times after returning green to before ridge closure.

2. Replenishing seedlings: when the height of the seedlings is 5 cm, the seedlings should be staggered and fixed according to the plant spacing of 6-8 cm, and the missing parts should be transplanted with soil and watered in time to facilitate survival.

3. Timely topdressing: during the growth period of Scutellaria baicalensis Georgi, topdressing should be applied once or twice a year, and compound fertilizer has the best effect on increasing yield. Soil topdressing was carried out in the first year after the seedling was fixed, in the second year and after that, soil topdressing was carried out before returning green to ridge sealing, and topdressing was applied timely and appropriately according to the growth of the plant.

4. Irrigation and drainage: from sowing to seedling emergence, Scutellaria baicalensis Georgi should keep the soil moist and emerge until the seedling is fixed, and then it should no longer be watered in case of special drought, other seasons and the next two years should also be watered in case of serious drought or fertilizer topdressing, and attention should be paid to timely drainage and waterlogging prevention in the rainy season.

5. Pruning flower branches: when planting Scutellaria baicalensis, the flower branches should be cut off in time after budding and before flowering, so as to reduce nutrient consumption and promote root growth, so as to increase the yield of Scutellaria baicalensis.

6. Harvest and processing: 2-3 years after sowing, it is appropriate to harvest Scutellaria baicalensis Georgi. Before sprouting in late autumn or spring, the harvest should be carefully dug up, must not be dug off, after digging out, the soil should be shaken, sunburned to semi-dry, and then dried or dried quickly.

7. The method of hitting the skin: the method of hitting the skin of Scutellaria baicalensis is to hit its head when it is 30% dry, the second time when it is 50% to 60% dry, the third time when it is 70% dry, and it will turn yellow and white at noon when it is 100% dry. 150 kilograms of dried medicinal materials can be collected per mu.