Assertion: fertilizer's nitrogen | /r/HasProperty | nh
Facets:
Source sentences:
text: Ammoniacal nitrogen (NH 3 -N) [ edit ]
text: Ammoniacal nitrogen (NH 3 -N) is a measure commonly used for testing the quantity of ammonium ions, derived naturally from ammonia, and returned to ammonia via organic processes, in water or waste liquids.