... : 0.2% max. Size: 1--5MM, 2---4MM. 4---7MM Calcium Nitrate (Calcium Ammonium Nitrate) (15.5-0-0 Ca: 19)Molecular Formula: 5Ca(NO3 ... environmental protection greening fertilizer.Specification:Total nitrogen: 15.5% min.----Nitrate Nitrogen: 14.4% min----Ammoniacal Nitrogen: 11.%minCalcium: 18.8 ... 0.02% max.Size: 1--5MM, 2---4MM. 4---7MM Calcium ammonium nitrate