fertilize

verb

1 the field is ploughed up and fertilized:

add fertilizer to, enrich with fertilizer, feed, mulch, compost, manure, dung, dress, top-dress;

make more fertile;

rare fecundate, fructify.

2 the eggs were fertilized during the breeding season:

impregnate, inseminate;

rare fecundate.

3 these orchids are fertilized by insects:

pollinate, cross-pollinate, cross-fertilize, make fruitful;

rare fecundate, fructify.

fertilize Oxford Dictionary of English