Diammonium phosphate, often abbreviated as DAP, is the world’s most widely used phosphorus fertilizer. Its water solubility and pH neutrality make it suitable for various cultivation methods, from traditional soil-based farming to hydroponics. DAP’s popularity stems from its effectiveness, ease of application, and suitability for a wide range of crops.
The production of DAP involves several steps. Phosphate rock is first treated with sulfuric acid to produce phosphoric acid, which is then reacted with ammonia to form DAP. This reaction occurs in controlled conditions of temperature and pressure. The resulting DAP solution is sprayed onto solid particles to form granules, which are then dried, cooled, and screened. The final DAP product is packaged for distribution. Overall, DAP production combines raw materials through chemical reactions to create a valuable fertilizer product used to enhance crop yields.
Any fluctuations in the availability or cost of the key inputs of phosphate rock, sulphur or ammonia can influence the prices and accessibility of DAP.
Its concentrated nutrient composition not only aids in cutting handling, transportation, and application expenses but also renders it a widely sought-after fertilizer commodity, produced in numerous global locations and actively traded on the market.