ammonification

[ uh-mon-uh-fi-key-shuh n, uh-moh-nuh- ]
/ əˌmɒn ə fɪˈkeɪ ʃən, əˌmoʊ nə- /

noun

the act of impregnating with ammonia, as in the manufacture of fertilizer.
the state of being so impregnated.
the formation of ammonia or its compounds by decomposition of organic matter.

Origin of ammonification

First recorded in 1885–90; ammoni(a) + -fication