C482 Going Mad for the Martial Arts(last part)

"No one farms? Then what does everyone eat?" Su Ze inquired.

"In the city, they find all they need to eat and drink. The remnants from unsuccessful pill concoctions greatly enhance the fertility of the land. Just mix the residue with the soil, and with only a few square feet, you can grow enough food to sustain a family of three for some time," Yang Morong clarified. "As I recall