Basal fertilizer: Organic fertilizer is used as a base fertilizer for one-time application. In addition, 6 kg of urea, 13 to 17 kg of ammonium phosphate, 7 to 8 kg of potassium sulfate, and 0.5 kg of borax are applied per mu.
Top dressing: 10 to 11 kg of urea, 5 to 6 kg of potassium sulfate per mu, 1 to 15 kg of urea, 6 to 8 kg of potassium sulfate, 10 to 11 kg of urea in the middle of the bulb formation Potassium 5 to 6 kg.
Fertilizers outside the roots: Boron deficiency can be used to spray 0.1% to 0.2% borax solution in the early and middle stages of flower formation; magnesium deficiency can be sprayed 0.2% to 0.4% magnesium sulfate solution 1 Up to 2 times.
The so-called pharmaceutical intermediates are actually some chemical raw materials or chemical products used in the pharmaceutical synthesis process. This chemical product does not require a production license for medicines, and can be produced in ordinary chemical plants. As long as it reaches a certain level, it can be used for the synthesis of medicines.
Explanation: Some chemicals used in drug synthesis
Purpose: Synthesis of medicines
Features: low profitability of production intermediates
Representative: fluorine-containing pyridines, etc.
Field: Medicine
Anti-Influenza Drugs,Api Oseltamivir Phosphate,Intermediate For Oseltamivir Phosphate,Vortioxetine Hydrobromide Intermediate
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