(n.) A salt of nitric acid.

acetify acidify acidulate alkalify alkalize ammonia borate carbonate castor-bean meal catalyze chemical chlorinate commercial fertilizer compost dressing dung electrolyze enrichener ferment fertilizer guano homopolymerize hydrate hydrogenate hydroxylate isomerize manure muck night soil nitrogen organic fertilizer oxidize pepsinate peroxidize phosphate phosphatize polymerize reduce sulfate sulfatize sulfonate superphosphate work