A plant cultivation device (1) which is an embodiment of a plant cultivation device includes: a cultivation bed (10) having a bottom surface (10a) on which a plant is placed and which is inclined; a first solution supply member (20); and a second solution supply member (30) extending along a direction (F1) in which the bottom surface (10a) is inclined. The second solution supply member (30) includes a plurality of nutrient solution discharge holes disposed along the direction (F1).

Disclosed herein are devices, systems, and methods for aquaponics and/or hydroponics. Specifically disclosed are novel rafts with a plurality of raft holes that can be filled with one or more net pots, growing media, and the like. The rafts may have handles and other features to support raft handling and raft accessories, including connecting rafts together. The raft holes may have upper portions and/or lower portions with unique shapes that support various sized growing media and root aeration. The holes may also have additional features, including: (1) a lip or flat area that ensures plant harvesting tools do not catch on net pot flanges, (2) one or more indentations that enable manipulation of net pots in the raft holes, and/or (3) one or more channels for transporting water and/or air. Additionally disclosed are covers for covering a top surface of a novel raft and/or any existing aquaponics and/or hydroponics device.