In recent years, the dosage of Astragalus has been increasing year by year, limited wild resources have been dug by plundering, and there is a shortage of goods, and commodity prices have remained high. The species of annual jaundice is more harsh than the wild species. Therefore, home-grown scutellariae are highly favored by the extraction factories. The growth habits and planting methods of Astragalus are as follows: Growth habits Astragalus membranaceus grows wildly in the sparsely populated slopes of the sunny slopes. It has strong adaptability, drought tolerance and cold-tolerance. It can overwinter in the fields, hi the sun, and is afraid of accumulation of water. Arable land can be planted, but the best growth is in sandy and fertile sandy soil or yellow loam soil. Saline land cannot be planted. New seeds can grow normally at 20°C, and seeds older than one year cannot be used. Roots can safely pass winter at minus 30°C. Seed sown before May, when the seeds can be mature, planted before July only flowering, sown before September, can be planted and overwintered in that year, planted after October, most of the second year of spring emergence. Select sites to select sites with deep soil and good irrigation and drainage conditions, apply sufficient farmyard manure and phosphorus and potash fertilizers, deepen 30 cm deep, make fine leveling, make flat rakes, water, and immerse in 3–5 days. When the feet start to sow. The sowing method will be smashed on a flat surface, and a shallow ditch with a spacing of 20 cm and 1 cm shall be used. The new seeds shall be evenly withdrawn into the ditch, smoothed with Daxie sulcus, and then watered. Keep the surface moist and develop 7-10 days. General use 1-1.5 kg. After the emergence of the field management, pay attention to cultivating grasses. If you do not plan to harvest in the year, turn off the frozen water and apply the wintering fertilizer before going through the winter to facilitate the growth in the coming year. For pest control, if leaf blight occurs, spray 50% carbendazim 1000 times solution or 1:1:120 Bordeaux mixture for 7-10 days at the beginning of the disease, and spray 2–3 times. Root rot mostly occurs in rainy years, attention is paid to drainage in the rainy season, and the humidity in the field is reduced. In the early stage of disease, spraying with 50% thiophanate-methyl 1000-fold liquid and foliar fertilizer is more effective. After harvesting, the dried leaves of the processing plant are withered or before germination in the early spring, and the roots are completely excavated to remove residual stems. During the drying process, it is necessary to prevent rain and water washing, otherwise the roots turn green and black and affect the quality. General production of 667 square meters of 150-250 kilograms, 1-2 years of dry rate of 35%, 3 years to 40%. Huangqi is thick and long, with solid quality and yellow color. China Agricultural Network Editor
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