CASTILLO 20 10 10 + (2 MgO) + (10 SO3) BLENDED NPK FERTILIZER Guaranteed Content Total Nitrogen (N):................................................................................................................. % 20 Ammonium Nitrogen (NH4-N):............................................................................................... % 7 Nitrate Nitrogen (NO3-N):....................................................................................................... % 2.5 Urea Nitrogen (NH2-N):........................................................................................................... % 10.5 Neutral Ammonium Citrate and Water-Soluble Phosphorus Pentoxide (P2O5):................. % 10 Water-Soluble Phosphorus Pentoxide (P2O5):....................................................................... % 10 Water-Soluble Potassium Oxide (K2O): ...................................................................................% 10 Water-Soluble Magnesium Oxide (MgO):................................................................................ % 2 Water-Soluble Sulfur Trioxide (SO3): .......................................................................................% 10