At present, there are many kinds of chemical fertilizers, and there are more than 10 commonly used ones. However, although there are two types of chemical fertilizers, although the vegetables can increase the yield, they can cause pollution of vegetables, causing poisoning and even life-threatening.
Ammonium nitrate and other nitrate nitrogen fertilizers are not suitable for use in vegetables, especially cabbage, green vegetables, spinach and other leafy vegetables. Because the nitrate nitrogen fertilizer is applied to the vegetable field, the nitrate content of the vegetable is doubled, and the nitrate is easily reduced to nitrite in the human body. Nitrite is a kind of drug, which is extremely harmful to the human body and is a carcinogen.
Fertilizers containing chlorine, such as ammonium chloride and potassium chloride, should not be applied to vegetables such as tomatoes and potatoes. After the chlorinated fertilizer is decomposed in the soil, ammonia or potassium ions are adsorbed by the soil and absorbed by the crops. To a certain extent, it will poison the plant roots, which can reduce the starch and sugar content of the product, affecting the yield and quality, and endangering the health of the consumer.
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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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