PROBLEM TO BE SOLVED: To provide a plant cultivation device capable of suppressing the proliferation of adhesive bacteria inside the plant cultivation device and floating bacteria in a cultivation space while suppressing adverse effect on the growth of plants.SOLUTION: A plant cultivation device 1 comprises: a cultivation chamber 3 whose front face is opened/closed by a door 4 cultivation trays 7 placed on an inner bottom surface of the cultivation chamber 3, in which the cultivation chamber 3 is sectioned in three stages in a vertical direction, and also on a top surface of each partition part 5 illumination parts 8 provided for a ceiling part of each stage an air outlet 10 which is provided for an upper part of the wall part of each stage and blows out air into the cultivation chamber 3 upward by 30° from the horizontal direction a return port 11 from which air in the cultivation chamber 3 outflows an air duct 9 that allows the return port 11 and the air outlets 10 to communicate with each other an air fan 12 that circulates air flowing into the air duct 9 from the return port 11 toward the air outlets 10 inside the air duct 9 and an ion generator 13 that ejects ions to the air circulating through the inside of the air duct 9.COPYRIGHT: (C)2015,JPO&INPIT【課題】植物の成長に悪影響が及ぶことを抑制しながら、植物栽培装置内部の付着菌や栽培空間の浮遊菌の繁殖を抑制することが可能な植物栽培装置を提供する。【解決手段】植物栽培装置1は、扉4により前面が開閉される栽培室3と、栽培室3を上下方向に3段に区分した栽培室3の内底面及び各仕切り部5の上面に配置した栽培トレー7と、各段の天井部に設けた照明部8と、各段の壁部の上部に設けた水平方向より30°上方に向けて栽培室3内に空気を吹き出す吹出口10と、栽培室3内の空気が流出する戻り口11と、戻り口11と吹出口10とを連通させる送風ダクト9と、戻り口11から送風ダクト9の内部に流入する空気を吹出口10に向けて送風ダクト9の内部で流通させる送風ファン12と、送風ダクト9の内部を流通する空気にイオンを放出するイオン発生装置13と、を備える。【選択図】図1
