Abstract: Plant support trays each have a plant-supporting surface and a series of grooves or channels extending below the pot-supporting surface. The plant support trays have integral water runoff troughs that receive runoff water from the grooves or channels. The plant support trays may be configured to provide gravity-based drainage while supported on a horizontal frame or rack or platform, or may be configured to provide drainage while supported on an angled frame or rack or platform.

Abstract: A mobile carriage system includes a frame supported by a surface, a drive shaft that extends along the frame and drives a drive wheel to move the frame along the surface, and a guide track that extends along the surface and has an elevated track portion. The drive wheel supports the frame and rolls along the surface, and a guide wheel rides along the elevated track portion. The drive wheel is fixedly secured onto the drive shaft and is rotatable by the drive shaft. The guide wheel is also mounted onto the drive shaft but is freely rotatable on the drive shaft, with the drive wheel having a smaller diameter than the drive wheel.

Abstract: A shelving system for plant cultivation includes a frame, at least two vertically-spaced support racks, a plant support tray positioned atop each of said support racks, an optional forced-air ventilations system, and an optional lighting system. A pair of upright frame portions have support racks extending between the upright frame portions. The plant support trays each have a pot-supporting surface and a series of grooves or channels extending below the pot-supporting surface. Optionally, the plant support trays have integral water runoff troughs that receive runoff water from the grooves, channels, or openings. Optionally, a drive mechanism is coupled to the frame and is operable to cause the frame to translate along a floor surface.