High-yielding cultivation techniques of Angelica pubescens

Live alone, alias Dahuo, incense live alone, oxtail live alone. It can dispel wind, dehumidify, disperse cold, relieve pain and so on. Clinical treatment of wind-cold-dampness arthralgia, waist and knee abdominal pain, rheumatic arthralgia, wind-cold headache and other diseases. The main producing areas are Hubei, Sichuan, Guizhou, Yunnan and other places.

The morphological characteristics are perennial herbs of Umbelliferae. 1.5-2 meters high. The main root is stout, fleshy yellowish white and fragrant. Stem erect, much branched, longitudinally striate, glabrous. Leaf blade ovoid, 2-3-pinnately compound; leaflet 3-divided, final lobes oblong, 6-9 cm long and 3-6 cm wide, apex acute, base cuneate, margin irregularly doubly serrate, sparsely pubescent on both surfaces; petiole 30-35 cm long; leaves on upper stem degenerated, without leaves, petiole inflated into cucullate leaf sheaths. Compound umbels densely yellowish brown pilose; involucral bracts absent; rays 10-25, unequal, densely yellowish brown pubescent; umbellules with 15-30 flowers, bracteoles 5-8, lanceolate; petals white, 5; stamens 5; ovary inferior, 2-loculed; style short, base oblate-conic. The back of the double hanging fruit is flat, oblong, the base is concave, the dorsal and middle ribs are linear, the tubing is 1-4 between the grooves, and the commissure is 4-5.

First, the growth habit is warm, humid and cool. Resistant to cold, afraid of water stains. Requirements for soil layer: it is better to cultivate sandy loam with deep soil layer, loose and fertile soil and rich organic matter. Saline-alkali land, heavy clay and low-lying land are not suitable for planting.

Second, select fields with high terrain and good drainage for soil preparation and fertilization, and cultivate them carefully. Combined with soil preparation, apply sufficient basic fertilizer: 5000 kg of soil miscellaneous fertilizer, 20 kg of urea and 50 kg of phosphorus and potassium fertilizer per mu. Then make beds and wait for sowing.

Third, sowing only live seeds to reproduce, the sowing time is divided into spring sowing or autumn sowing. Spring sowing before and after the Qingming Festival; autumn sowing before freezing. Before sowing, make a shallow trench on the finished border surface with rake, then spread the seeds evenly into the ditch, rake flat so that the soil cover no seeds. Water to preserve soil moisture to facilitate the emergence of seedlings. The sowing rate is 2 kg per mu.

Fourth, after the field management lives alone, pay attention to ploughing and weeding. Should be watered frequently in dry weather and drained in time in overcast and rainy weather. Before and after the Beginning of Autumn, Duhuo entered the rhizome expansion period, should be topdressing once: 10 kg urea per mu and 10 kg potassium dihydrogen phosphate per mu. To promote the rapid growth of underground rhizomes.

Fifth, the main pest pests are drillworms, which can be used to control diseases and insect pests. Aphids and red spiders can be controlled by Sanfangling. Phoxim was used to control underground pests with poison bait.

Sixth, harvesting and processing living alone is generally harvested after the aboveground stems and leaves withered after growing for a year. The ploughed underground rhizome can be sold as medicine after cleaning the soil, drying or drying it. The yield is 350 kg per mu.