Problem to be solved: to provide a liquid feed supply apparatus which is easy to maintain.A spray device 100 is a liquid crystal supply deviceThrough the opening 41 of the cultivation vessel r which houses at least the root inside the plantIt can be removed and removed from the inside of the containerAt least one nozzle 115 for spraying the solution into the interior of the vesselA drive part 130 for removing and removing the nozzle 115 from the inside of the cultivation vessel R through an opening 41 of the cultivation vessel RAt least one movable body 140 for moving the nozzle 115 to the container R is provided.Diagram【課題】メンテナンスが容易な養液供給装置を提供する。【解決手段】噴霧装置（養液供給装置）１００は、植物体のうち少なくとも根を内部に収容する栽培容器Ｒの開口部４１を介して、栽培容器Ｒの内部に対して挿脱可能であり、栽培容器Ｒの内部に養液を噴霧する少なくとも１つのノズル１１５と、栽培容器Ｒの開口部４１を介してノズル１１５を栽培容器Ｒの内部に対して挿脱する駆動部１３０と、ノズル１１５を栽培容器Ｒへ移動させる少なくとも１つの移動体１４０とを備える。【選択図】図６
