Abstract: A soil enhancement system comprising an open-system bioreactor; a soil enhancement mix; a soil enhancement composition; and an irrigation system in communication with said open-system bioreactor. The system may further comprise an auto-fill device, a recirculation pump. and an aerator. A method of soil enhancement comprising flowing fluid into an open-system bioreactor; disposing a soil enhancement mix into an open-system bioreactor; contacting the fluid with the soil enhancement mix to form a soil enhancement composition; flowing the soil enhancement composition out of the open-system bioreactor; and flowing the soil enhancement composition through an irrigation system.