Key points of planting Radix Isatidis

Banlangen plant characteristics: 30-35 cm high. The root is Radix Isatidis and the leaf is Isatidis. Growth habits: lax requirements on the soil, cold and warm areas can be planted in general soil. Afraid of waterlogging, like the sun. It can be cropped continuously. Cultivation management: seed propagation, spring sowing and summer sowing. Spring sowing: between March and May, choose good drainage, loose and fertile soil, according to the row spacing of 18-20 cm, draw a ditch 15 cm deep. Spread the seeds evenly into the ditch, cover the soil, step on the foot once, or push it twice with a big hoe and water it flat. It usually takes about 18 ℃ and emerges in 7-10 days. From June to July, the method of summer sowing is the same as that of spring sowing, and seedlings emerge in 4-5 days. Field management: seedling height about 6 cm, plant distance about 5 cm, Lesser Fullness of Grain to mango seed section, 15 kg ammonium nitrate per mu, 15 kg calcium superphosphate per mu, watering after burying soil, the Summer Solstice small section to cut leaves, 4-5 days after leaf cutting, 10 kg urea can be recovered. Harvest processing: spring sowing Banlangen cut leaves once in the summer, cut off the leaves from the base, and dry them for a day or two. Cold Dew to Frosts Descent planed the roots, dried them and used them as medicine. If sown in summer, the leaves will be cut and dried when planing, and the root planing season will be the same as above.