Abstract: A rotatable rack system for growing plants is disclosed which has a frame, a plurality of mobile trays arrayed around the frame, where each mobile tray contains at least one plant and a chain linking said plurality of mobile trays together, supported by the frame with a drive mechanism configured to drive the chain wherein the frame is configured to support the plurality of mobile trays encircling an enclosed space. Several configurations of the frame that are equally energy efficient are also disclosed, along with a method of growing plants using the system.

Abstract: A rotatable rack system for growing plants is disclosed which has a frame, a plurality of mobile trays arrayed around the frame, where each mobile tray contains at least one plant and a chain linking said plurality of mobile trays together, supported by the frame with a drive mechanism configured to drive the chain wherein the frame is configured to support the plurality of mobile trays encircling an enclosed space. Several configurations of the frame that are equally energy efficient are also disclosed, along with a method of growing plants using the system.

Abstract: A rotating vertical racking system for growing plants, the system comprising: a frame; a drive mechanism coupled to said frame; and a plurality of racking trays coupled to said drive mechanism, each of said racking trays being capable of supporting at least one plant; wherein said drive mechanism is configured to rotate said plurality of racking trays. The system may be powered by water. A method of growing plants using the system is also disclosed.

Abstract: A system for treatment of soil comprising: a vertical tower structure (1); at least one soil rest drum (3); and a drive unit; wherein the soil rest drum (3) configured for mounting to the vertical tower structure (1) in a manner such that the soil rest drum (3) is vertically moveable along the vertical tower structure (1) under a gravitational force; and wherein the drive unit is configured for regulating a speed of the soil rest drum (3) moving under the gravitational force.