"ingaba le ntsimi ifuna isityalo sokukhusela esingumdumba okanye esingenguwo khumbula ukuba izityalo zokukhusela zandisa amanqanaba e-nitrogen ngokuyitsala emoyeni osingqongileyo kanti izityalo ezingeyomidumba zisebenzisa i-nitrogen eseyikhona emhlabeni kunye nezinye izondlo"