Seed treatment techniques of artificial planting of Glycyrrhiza uralensis
Licorice seed coat is solid, water absorption is poor, the germination rate is only 4-6%, need to be milled or sulfuric acid treatment, break the seed hard state, improve the germination rate and emergence rate.
1. Sulfuric acid treatment. Stir the pure seeds with 20-30 milliliters of 80% sulfuric acid per kilogram. See that the seed coat has uniform marks of sulfuric acid etching, then rinse with clean water and dry for use. The time of seed treatment is related to the temperature and the amount of acid added. In the case of the same amount of acid, the treatment time is short when the air temperature is high, and the treatment time is long when the air temperature is low. If more acid is added, the treatment time will be short, otherwise the treatment time will be long.
Second, the method of crushing the seed coat. Put the seeds on a grinding plate, 3 cm thick, turn with the grinder, when the seed coat is yellow and white, then soak the crushed seeds in warm water of 40 ℃ for 2-4 hours, remove them and rinse off the mucus with clean water to sow.
The method of crushing seeds with rice milling machine is simple and easy, the cost is lower than sulfuric acid method, and it is harmless. The crushing is light, the seed coat cannot be crushed, the seed is heavy and the waste is serious. It is appropriate to cut the material quickly and grind it 3-4 times. From the appearance, there is an obvious lack of coat or the breaking rate of seed coat is more than 90%.
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How to pick licorice?
The best time for seedling cultivation and transplanting of Glycyrrhiza uralensis Fisch is 2-3 years, and the best quality is in autumn. Before mining, the stems and leaves can be cut off and used as livestock feed. Then use deep loosening machine or licorice plough to prevent damage to root bark and premature root cutting. Dig out the root shaking clean soil, do not wash, remove the residual stem, root beard, cut off the root head, divided into grades according to the thickness of the root strip, the root strip can not be less than 20 cm. Trim and cut licorice, grade and dry. Drying licorice should pay attention to rain protection, the yard is free from pollution. When licorice is half-dried, tie it into a diameter
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Artificial cultivation techniques of Glycyrrhiza uralensis
Licorice, also known as sweet grass, is a perennial plant of Leguminosae. Its rhizome is used in medicine and is widely used. In recent years, medical workers in Japan and other countries have found that licorice has an inhibition rate of 98% on HIV and has a strong immune function. This paper introduces the techniques of artificial cultivation of licorice: first, cultivation methods. 1. Land selection and preparation: licorice grows mostly in dry calcareous soil, which is dry and cold-resistant, so it is suitable to be planted in loose sandy soil with low groundwater level and good drainage. The roots of this kind of landlords are easy to elongate downward, straight and silty. The ground is selected.
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