fertilize vs fertilization

fertilize is not a noun while fertilization is a noun.

Word	Noun	Adjective	Verb	Adverb
fertilize	No	No	Yes	No
fertilization	Yes	No	No	No

fertilize (noun)	fertilization (noun)
	creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant
	making fertile as by applying fertilizer or manure

fertilize (verb)	fertilization (verb)
introduce semen into (a female)
provide with fertilizers or add nutrients to
make fertile or productive