Nitrophoska
Nitrophoska
a compound nitrogen-phosphorus-potassium mineral fertilizer. It contains 35–52 percent N, P2O5, and K2O in various proportions and is produced in granules. The most common Nitrophoska consists of a precipitate, Ammophos, and ammonium nitrate obtained in a single production process by decomposition of apatite or phosphorite with a mixture of nitric and phosphoric acids and addition of ammonium and potassium chloride. It is used as a base and presowing fertilizer for all crops.