Diammonium fertilizer represents a crucial source of nitrogen and P for website crop production. Composition A typical Di-ammonium phosphate bag contains 18.0% nitrogen, 46.0% phosphorus pentoxide and 0% potassium, commonly expressed as 18‑46‑0. Market Rates As of 2025 the average price for a 50 kg sack of DAP in Kenya ranges from KES 650