tree farming vs agriculture

tree farming and agriculture both are nouns.

Word	Noun	Adjective	Verb	Adverb
tree farming	Yes	No	No	No
agriculture	Yes	No	No	No

As nouns, agriculture is a hypernym of tree farming; that is, agriculture is a word with a broader meaning than tree farming:

Other hypernyms of tree farming include farming, husbandry.

tree farming (noun)	agriculture (noun)
the tending of and caring for trees	the practice of cultivating the land or raising stock
	a large-scale farming enterprise
	the class of people engaged in growing food