It's important to apply DAP fertilizer responsibly, pursuing advisable application rates and methods to reduce environmental risks. DAP is principally manufactured via a chemical process involving the reaction of phosphoric acid with ammonia. The reaction yields diammonium phosphate, which is then dried and granulated for easy application. Regulation of pH: https://jeffreyobshs.shivawiki.com/7643158/everything_about_urea_fertilizer_quantity