Licorice, also known as sweet grass, is a perennial plant of the leguminous family. Its roots and stems are used as medicines and are widely used. In recent years, medical workers in Japan and other countries have found that the inhibitory rate of licorice against HIV is as high as 98%, and it has strong immune function. Now introduce artificial cultivation of licorice technology: First, cultivation methods. 1. Soil preparation and preparation: Glycyrrhiza licorice lived in dry calcareous soil, hi dry and hardy, so it should be planted in loose sandy soil with low groundwater level and good drainage. This kind of landlord root is easy to stretch down, with straight roots and lots of silt. After selecting the land, choose to apply the decomposed manure or compost as the base fertilizer, and then deep-dip 60-100 centimeters, make a fine leveling, and make it 1-2 meters wide. 2. Breeding: There are two kinds of seed breeding and rhizome breeding. The spring of seed propagation is sown in the spring before and after the rain, and it is broadcast in the fall from autumn to Bailu, but the autumn sowing is better than the spring sowing. Licorice seeds have a layer of colloidal resin and are not easy to absorb water. Before sowing, they must be soaked in warm water of 40°C-50°C for 3 days, and often change the water so that the seeds can fully absorb. Then divide the ditch by 20-30 cm deep into the ditch, spread the seeds evenly in the ditch, cover the soil 3 cm, pressurize and press water, cover the straw curtain to keep it moist, and remove it immediately after germination. About 2.5 kilograms of seeds per acre. The seed reproduction of licorice can achieve satisfactory results. Before and after sowing, we must pay attention to: First, we should do a good job of deep ploughing, water storage, and space for expanding root activity. The second is timely early sowing, looting sowing or early sowing and other rain, timely use of soil moisture, promote rooting, growth time. The third is to apply basal fertilizer to help accelerate the growth of seedlings in the future. The fourth is to strictly grasp the depth of sowing on specific operations. This is the key to emergence and conservation. Roots propagation is the selection of plants that have been grown for many years, with multiple adventitious shoots in the roots, excavated in the spring or autumn, and crude roots are used as medicine. The fine roots are cut into 15 cm. Each section has 1-2 buds, cut and trimmed while cutting. Follow the line spacing 60-100 cm to open a 15 cm deep ditch. Cut the cut rhizome horizontally by 15 cm along the plantings, and cover the soil to compact it. Second, field management. After the seedlings are flushed, the seedlings can be grown too closely. Throughout the growing season, weeding should be taken care of. Combine cultivating and weeding each year, top dressing 1-2 times. Third, pest and disease control. 1. Diseases: There are mainly powdery mildew and rust, mostly occurring from May to August, and can be sprayed with 0.3 Baume degree lime sulfur. 2. Insect pests: It is mainly red spider that can be sprayed with 1:2000 dimethoate emulsion. The ground tiger can use poison bait to kill. Fourth, harvest processing. The licorice has a longer growth period, and the harvesting time can be determined according to the climatic conditions, growth, and management of each place. It is generally harvested by seed propagation for 3-4 years, and for root propagation 2-3 years. Harvesting is generally conducted in spring and autumn. Before mulching licorice seedlings are unearthed, or after the stems and leaves of the white dewy land are withered, they can be excavated. Due to the differences in the quality of excavation time, the quality of excavation in the fall, weight, silt, and quality are good. During excavation, all the roots will be excavated and the sediment will be removed (avoid washing with water). First cut off the roots and fibrous roots from the main root, then scrape off the upper rakes, and press the roots to be thick, slender, and short to divide into large, medium, and small grades for drying. When raining, it is necessary to prevent rain, so as not to be damp and moldy. Sun dry to a half, bundle into small, continue to dry to dry.
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