Very productive
I believe the answer is:
fertile
(Other definitions for fertile that I've seen before include "Able to reproduce abundantly" , "Let rife (anag)" , "Producing good crops" , "(Of soil) richly productive" , "Highly productive" .)
I believe the answer is:
fertile
(Other definitions for fertile that I've seen before include "Able to reproduce abundantly" , "Let rife (anag)" , "Producing good crops" , "(Of soil) richly productive" , "Highly productive" .)