Oh you city slickers... This has been a thing for centuries and it works pretty well. Getting big industry in the middle of the process would be new but the p

Oh you city slickers... This has been a thing for centuries and it works pretty well. Getting big industry in the middle of the process would be new but the process is old. https://en.wikipedia.org/wiki/Green_manure https://en.wikipedia.org/wiki/Green_manure