Di-ammonium fertilizer represents a essential source of N and phosphorus for farm production. Composition A typical DAP bag contains 18% nitrogen, 46% phosphorus pentoxide and 0.0% potassium, commonly expressed as 18‑46‑0. Pricing Trends As of 2025 the standard price for more info a 50 kg of DAP in Kenya ranges from KES 6500 to KES 8500