Introduction to planting techniques of Radix Astragali

Astragalus membranaceus is a leguminous plant, perennial herb, plant height 1 m to 1.5 m, medicinal rhizome, its main root cylindrical, yellowish brown, shoot Lignification. Astragalus membranaceus has the functions of replenishing qi and solidifying the surface, supporting toxin and expelling pus, promoting diuresis and detumescence, which accounts for a large proportion in the prescription of traditional Chinese medicine, and has a large annual export volume.

First, land selection and land preparation: Astragalus membranaceus has strong adaptability, relatively cold and drought tolerance, the general soil can grow, it is not suitable to plant in low-lying waterlogged land, the root is deeper, the land should be ploughed deeply before planting, and the land should be ploughed at the right time. It is good to plant in dry areas in the rainy season.

Second, cultivation techniques: seed reproduction, sowing in late autumn and spring, or sowing in summer. Soak the seeds with water before sowing, soak for about 6-8 hours, mix them with sand after being removed, and sow when you find buds. The seedlings usually emerge in 7-10 days. Strip sowing, open a ditch 2 cm deep according to the row spacing of 25 cm, spread the seeds evenly into the ditch, push it flat with a big hoe, and then hug the border surface out of the floating soil.

Third, field management: seedling height 8-10 cm to crowded seedlings, plant spacing 8-12 cm is appropriate, after the seedlings should be watered and topdressing, 10-15 kg urea per mu. Pay attention to ploughing and weeding at seedling stage. The humidity is too high in the rainy season, so we should pay attention to drainage.

Fourth, pest control: powdery mildew occurs between July and August, and can be sprayed with powder lingering or Baifenling, Duoyinling and Tuobu Jin liquid according to the instructions, and can be cured once or twice.

Fifth, harvest processing: after the autumn of that year or the next autumn, dig up or pull out, remove the soil and Reed stem, dry it into medicine, it can also be sold fresh.

Measures to increase income: before planting, apply more organic fertilizer as base fertilizer, deep ploughing and raking fine, the yield will increase obviously.