Fertilization in autumn has a particular emphasis on how to apply, how to apply fertilizer, and how much to apply. Yu Hongqi, a senior agronomist of Yangling New Farmer Ecological Agriculture in Shaanxi Province, pointed out that the amount of fertilization in autumn should account for 60% of the annual fertilization amount, which can solve the problem of apple size and year, and also improve the quality and yield of apple.
Autumn fertilization is at the time
Taking apple trees as an example, Yu Hongqi said that after fruit picking, timely application of base fertilizer is beneficial to the continued increase of orchard in the next year. Since the roots of fruit trees are organs for nutrient absorption and storage, the nutrients required for growth and development in the spring of the second year are mostly derived from root storage. It can be said that the level of root storage nutrients determines the quality of flower bud differentiation in the coming year, and also determines the cold resistance of fruit trees. Sexual traits.
Fruit trees are not fertilized and topdressed in autumn. Yu Hongqi emphasized that “there are fundamental differences between the two methods of fertilization, and the base fertilizer must be applied deeply. This is good for the development of fruit trees in the coming year, which is conducive to the continued increase of the orchard in the coming year.†In addition, the application of organic fertilizer or biological bacteria in autumn Fertilizer-based, it is best to mix with the soil after fertilization.
Nutritional balance is the key
Yu Hongqi said that in the autumn, fertilization should be based on organic fertilizer, supplemented by phosphorus and potassium fertilizer, and targeted application of trace element fertilizer. "Taking nitrogen fertilizer as an example, different nitrogen application periods have different effects on the growth and development of fruit trees. Nitrogen fertilizer is not easy to apply, and it cannot be applied." Yu Hongqi said.
Yu Hongqi introduced that there are many benefits of autumn fertilization. First, the nitrogen fertilizer of autumn application is absorbed by the roots and becomes the storage nutrients of the tree, which becomes the nutrient source of flowering and leaf expansion in the next year. Second, the temperature difference between day and night is large, and the scattered light is scattered. The proportion is increased, and the photosynthetic efficiency of the leaves is improved after fertilization. Thirdly, the organic fertilizer is applied in autumn, and the roots are absorbed and operated for a long time, and stored in the tree body.
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Drug intermediates -Pharmaceutical intermediates: A material that is produced during a process step of the drug substance and must undergo further molecular changes or refining before it becomes a drug substance. The intermediates can be separated or not separated.
Active Pharmaceutical Ingredient (APIS)(or Drug Substance) : Active Pharmaceutical Ingredient (API)(or Drug Substance) : Any substance or mixture of substances intended to be used in the manufacture of pharmaceutical products and, when used in pharmaceutical products, to be an active ingredient in pharmaceutical products. Such substances have pharmacological activity or other direct effects in the diagnosis, treatment, symptom relief, management or prevention of disease, or can affect the function and structure of the body. As can be seen from the definition, the Intermediates APIS is a key product of the previous process of manufacturing the API and has a different structure from the API
Finally, for example, amoxicillin capsules are called preparations, amoxicillin is called APIS, and 6-APA is called Veterinary Intermediates APIS.
Penicillin potassium for injection is called preparation, penicillin potassium is called Veterinary raw materials, and green potassium industrial salt is called intermediate
Drug intermediates,Pharmaceutical intermediates,Intermediates APIS
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