Compared with other crops, corn is also a variety that requires more fertilizer. Among the fertilizers required, nitrogen fertilizer accounts for the largest proportion. How much fertilizer should we use in specific production? The following is a detailed explanation. Generally, for every 100 kg of corn kernels produced, nitrogen (N) 2.57 kg, phosphorus (P2O5) 0.86 kg, and potassium (K2O) 2.14 kg are absorbed from the soil, and the ratio of nitrogen, phosphorus, and potassium is 1:0.3:0.8. Base fertilizer: The base fertilizer should be applied to the full application. Generally, the application of nitrogen, phosphorus, potassium and zinc four-component compound fertilizer is 40-60Kg. When transplanting, the live fertilizer is used to remove 1500Kg of clear manure water. Miao Fei: early application of seedling fertilizer, 5 to 6 leaves in time for fertilization, 5 to 10 kg of urea, 1500 Kg of demineralized water, combined with cultivating and weeding. Spike fertilizer: heavy application of panicle fertilizer, 11 to 13 leaves, that is, the large trumpet period, the application of grain fertilizer urea 15 ~ 25Kg, plus potassium chloride 10Kg or the application of corn special fertilizer 25Kg, the hole application of cultivating soil. Granular fertilizer: 0.3% potassium dihydrogen phosphate is sprayed at the heading stage. The density can be combined with the application of corn sorghum before the ear is extracted. The urea is applied in the grain filling period of 2~3Kg, combined with spraying potassium dihydrogen phosphate. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Active Pharmaceutical Ingredients Active Pharmaceutical Ingredients(API) 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. API is intended to be used in any substance or mixture of substances in the manufacture of pharmaceuticals, and when used in pharmaceuticals, it becomes an active ingredient of the pharmaceuticals. Such substances have pharmacological activity or other direct effects in the diagnosis, treatment, symptom relief, treatment or prevention of diseases, or can affect the function or structure of the body. According to its source, active pharmaceutical ingredients are divided into two categories: synthetic chemical active Pharmaceutical ingredients and natural chemical active Pharmaceutical ingredients. Chromium Picolinate,Tianeptine,6-Paradol,Aminobutyric acid,acetylcysteine,L-Carnosine Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bios.com