Wheat-jaundice continuous cropping technology

Medicinal plant Astragalus, a perennial herb of the Labiatae family. Taking root as medicine, having heat and dampness, detoxification and gallbladder and other functions, artificial cultivation of jaundice, using wheat-jaundice continuous cropping mode, can not only rationally arrange the rind, but also improve the economic benefits, especially worthy of planting in mountainous areas and hills. I. Astragalus growth habits Astragalus plant height 20-60 cm, suitable for warm and humid climate, resistant to cold, adult plants can withstand low temperature -30 degrees, in sunny, high dry, well-drained, neutral and slightly alkaline soil or Sandy soil can grow well. Drought-resistant and fearful, easy to rot in low-lying water, attention should be paid to good drainage. The breeding of Astragalus includes seed propagation and seedling cultivation. There are three kinds of seed propagation: spring sowing, summer sowing and autumn sowing. This program uses seed summer sowing and harvested in the fall of that year. Second, sowing wheat harvest, timely preparation of earthworms, Mushi base fertilizer diamine 25 kilograms, do after the ditch by 20-25 cm ditch, ditch 2-3 cm deep, the seeds evenly sprinkled into the ditch, covering the soil. Can also be used to sow the sow, that is, before and after the summer solstice, sowing the rainy day sowing, ditching 2-3 cm into the seed, covering the soil, acres of seed amount of one kilogram. Three, field management to maintain soil moisture after seedling period, when the seedling root system more than 10 cm deep in the soil, with a certain ability to resist drought, should stop watering, seedlings to promote root growth; Astragalus seedlings grow slowly, after the emergence of seedlings should be first , Often loosing grass, usually cultivating 2-3 times, after ridge closure stop cultivator; seedling height 10-15 cm, according to fertility, topdressing pure nitrogen 13 kg per mu, superphosphate 15 kg, fertilizer can be Gutters are applied between rows; in addition to flower buds, in addition to leaving fields, buds should be removed in time to facilitate nutrient concentration in the roots. Fourth, pest and disease prevention and control of yellow peony pests and diseases, leaf blight and root rot in the rainy season. Control methods, first, timely removal of the sick, burned or buried; the second is the early onset of 50% carbendazim WP 1000 times spray, spray once every 7-10 days, and even spray 2-3 times. In addition, phoxim can be used to irrigate the roots to control the tigers and earthworms. V. Harvesting of harvested seeds, astragalus fruit and fruit period is longer, mature period is inconsistent, and it is extremely easy to fall off. The reserved fields should be cooked with harvesting, dry, placed in smoke-free, no odor storage; herbs harvested, planted It can be harvested after 1-3 years. In recent years, it has been harvested one year after planting. After roots withered in the autumn or in the spring of the following spring, the roots are plucked out, the residual stems are cut off, the soil is shaken, and the roots are dried. Into 2-3% dry, to rough skin, dried into medicine. During the drying process, moisture and rain should be avoided to prevent the root bar from turning green and darkening affecting the quality.

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