Green manures some call them
CNC seems to be on top of it but basically cover cropping in ag is similar. Bare ground loses carbon so you don’t want bare ground and something always growing. Organic farming methods dip into the situation too.

I had a book from them years ago
https://rodaleinstitute.org/


“Socialism only works in two places: Heaven where they don't need it and hell where they already have it.” ― Ronald Reagan