Purple potato is also called black potato. The flesh of the potato is purple to dark purple. The taste is delicate and sweet, and the aroma is strong. Strong budding, many branches, stout, up to 1 meter, not long, semi erect. In addition to the nutritional content of ordinary sweet potatoes, it is also rich in selenium and anthocyanins. Known as the seventh most important nutrient after water, protein, fat, carbohydrates, Vitamins, and minerals. The disease resistance is strong, the single potato can reach more than 10 kg, the maximum single potato weighs 5.7 kg, and the average yield per mu can reach 3000 kg. Therefore, purple sweet potatoes are rich in nutrition, high in planting efficiency, and broad in market prospects.
In order to improve the purple potato planting yield, stabilize the purple potato during the growing season with fewer viruses, promote the rapid growth of purple potato seedlings after transplanting, increase the size of the potato pieces, increase the yield, and avoid the possibility of small and deformed potato pieces, or even long potato. Root system, yield and quality are severely reduced. On the basis of increasing potassium fertilizer application, foliar spraying of the mixed solution according to the following formula is used to increase yield:
1. Mixed solution formula: spray 2 sprayed mixed solution of 20 grams of chrysanthin per acre, 1 bag of streptomycin for agricultural use 15 g, 1 bag of imidacloprid 8 grams, 100 g of vinegar, 60 kg of water Pests and diseases, make the potato pieces larger and smoother, and increase the yield, thereby preventing chlorotic spots, flowers and leaves, leaf curling, shrinking, yellowing, cracking of potato pieces, moth-eaten and so on.
2. Spraying method and time: spray for the first time after 10 days, and spray it again after 20 days. Do not use for 20 days before digging.
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API Powder (Active Pharmaceutical Ingredient)
Active Pharmaceutical Ingredients refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly.
According to its source,Active Pharmaceutical Ingredients are divided into two categories: synthetic chemical drugs and natural chemical drugs.Chemical synthetic drugs can be divided into inorganic synthetic drugs and organic synthetic drugs. Inorganic synthetic drugs are inorganic compounds (extremely elements), such as aluminum hydroxide and magnesium trisilicate used to treat gastric and duodenal ulcers; organic synthetic drugs are mainly composed of basic organic chemical raw materials, through a series of organic Drugs made by chemical reactions (such as aspirin, chloramphenicol, caffeine, etc.).
Natural chemical drugs can also be divided into biochemical drugs and phytochemical drugs according to their sources.Antibiotics are generally made by microbial fermentation, which belongs to the category of biochemistry.In recent years, many semisynthetic antibiotics are the combination of biosynthesis and chemosynthesis.Among APIs, organic synthetic drugs account for the largest proportion in variety, yield and output value, which is the main pillar of chemical pharmaceutical industry.The quality of API determines the quality of preparation, so its quality standards are very strict. All countries in the world have formulated strict national pharmacopoeia standards and quality control methods for its widely used API
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