Peter's 20-20-20 General Purpose Water Soluble Fertilizer with Micro Nutrients. 1/2 pound. GUARANTEED ANALYSIS For Continuous Liquid Feed Programs Total Nitrogen (N) 20% 3.89% Ammoniacal Nitrogen 6.11% Nitrate Nitrogen 10.00% Urea Nitrogen Available Phosphate (P2O5) 20% Soluble Potash (K2O) 20% Magnesium (Mg) (Total) 0.05% 0.05% Water Soluble Magnesium (Mg) Boron (B) 0.0068% Copper (Cu) 0.0036% 0.0036% Chelated Copper (Cu) Iron (Fe) 0.05% 0.05% Chelated Iron (Fe) Manganese (Mn) 0.025% 0.025% Chelated Manganese (Mn) Molybdenum (Mo) 0.0009% Zinc (Zn) 0.0025% 0.0025% Chelated Zinc (Zn) Derived from: Ammonium Phosphate, Potassium Nitrate, Urea, Magnesium Sulfate, Boric Acid, Copper EDTA, Iron EDTA, Manganese EDTA, Sodium Molybdate, Zinc EDTA. Potential Acidity: 558 lb. Calcium Carbonate equivalent per ton. Maximum solubility 3 lb. 8 oz./gal.