PROBLEM TO BE SOLVED: To provide a natural water and air combination supply device forming a state in which at the same time as wet supply of water close to nature, oxygen is supplied to the soil medium as much as possible.SOLUTION: Provided is a supply device for simultaneously supplying water and oxygen to a medium in which plants are planted, the device comprising water storage units B-1 to B-2 for storing water supplied to the medium, and air units A-1 to A-2 in which air containing oxygen supplied to the medium stays.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】自然に近い水の湿潤給水と同時に、酸素もできる限り土媒体へ、供給される状態が形成される、自然的水空気併合供給装置を提供する。【解決手段】植物が植えられる媒体へ水および酸素を同時に供給する供給装置であって、媒体へ供給される水を収容する貯水部B-1~B-2と、媒体へ供給される酸素を含む空気が滞留する空気部A-1~A-2と、を備える供給装置である。【選択図】図1