fertile, productive, able to have children
El árbol crece bien porque está en tierra fértil.
The tree grows well because it is in fertile soil.
Si sigue con el tema, le digo que no eres fértil.
If he keeps bringing it up, I'll tell him you're not fertile.
— Contra la pared (2004)
Un suelo fértil es indispensable para la agricultura.
Fertile soil is essential for agriculture.