... fertilizer 15-15-15 Specifications: 1)Total:45%min Nitrogen:15%min. 2)P2O5:15%min 3)K2O:15%min. 4)Moisture:1%max 15-15-15 npk 16-16-16 compound ... as vegetables and ornamentals.N=Nitrogen P=Phosphorus K=PotassiumNPK 15-15-15, NPK 16-16-16, NPK 17-17-17, NPK 18-18-18, NPK ... -12-36, NPK 20-10-10, NPK 16-8-24, NPK 11-22-16, NPK 15-5-30, NPK 14-11-25, NPK ...