Harvest and processing of licorice
The harvest time is generally late autumn and early spring, and it is generally best after the fallen leaves wither in autumn. at this time, the licorice root harvested is firm, weight, powdery and sweet, and the soil of the excavated licorice is removed (it is strictly forbidden to wash with water). Cut the head and the branch root from the main root with a guillotine or sharp knife while it is fresh, and it is divided into first-class and second-class according to the root diameter, hairy grass, generally dry goods with coarse head diameter above 1.5cm are first-class. Put the second-class diameter of 0.3-1.4cm, less than 0.5cm into the hairy grass, first-and second-class licorice, its root strip can not be shorter than 30cm, and then air according to the grade, pay attention to rain protection, otherwise damp mildew. The ground should be padded with thick pillow wood to ensure ventilation and ventilation, and it should be checked frequently to make it evenly dry. After the sun is half-dry, it will be tied into small bundles about 10cm in diameter and continue to dry until it is fully dry.
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Harvesting and processing of licorice (1)
The key technical measures for high-yield cultivation are to choose sandy soil with fertile soil, loose texture and good drainage. The seeds were treated before sowing to improve the germination rate, the seedlings were watered to protect the seedlings, and sufficient phosphorus and potassium fertilizer was applied in early spring every year. Harvesting and processing 1. Licorice harvested with seeds generally grows for 4 years after sowing, while rhizome propagation can be harvested after 3 years. It is better to harvest in autumn every year. When harvesting, dig up the licorice root and rhizome and shake off the soil for processing. 2. The processing method will be dug.
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Cotton angular spot
The disease is harmful not only to cotton seedlings, but also to adult stems and leaves and developing cotton bolls. At the seedling stage, the infected cotyledons showed waterlogged irregular or round spots, dark brown, and the severe cotyledons withered and fell off. The back of the infected leaves first produced dark green dots, then expanded into oil-stained ones, and the disease spots on the front of the leaves were polygonal, and sometimes the disease spots expanded in irregular strips along the veins, resulting in withered and yellow leaves. Stem infection present water status of the main disease spot, and then expand and blacken or rot, the disease part is sunken, the germs bend to one side. The top bud infection forms a "rotten top", resulting in the death of the whole plant.
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