CASTILLO 10-40-10 + ME NPK Fertilizer Mixed Guaranteed Content Total Nitrogen (N) ......................................................................................................%10 Ammonium Nitrogen (NH4-N) %10 Neutral Ammonium Citrate and Water-Soluble Phosphorus Pentoxide (P2O5).... %40 Water-Soluble Phosphorus Pentoxide (P2O5)......................................................... %40 Water-Soluble Potassium Oxide (K2O) .................................................................... %10 Water-Soluble Boron (B) ............................................................................................ %0.02 Water-Soluble Manganese (Mn) ............................................................................... %0.05 Water-Soluble Zinc (Zn) ............................................................................................. %0.05