fish meal vs organic fertilizer

fish meal and organic fertilizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
fish meal	Yes	No	No	No
organic fertilizer	Yes	No	No	No

As nouns, organic fertilizer is a hypernym of fish meal; that is, organic fertilizer is a word with a broader meaning than fish meal:

fish meal: ground dried fish used as fertilizer and as feed for domestic livestock
organic fertilizer: a fertilizer that is derived from animal or vegetable matter

Other hypernyms of fish meal include feed, provender, organic, organic fertiliser.

fish meal (noun)	organic fertilizer (noun)
ground dried fish used as fertilizer and as feed for domestic livestock	a fertilizer that is derived from animal or vegetable matter