[PROBLEMS] To keep a suitable environment in a cultivation room. A plant cultivation system includes a plurality of cultivation racks having a plurality of cultivation shelves. A plurality of intake fans 40 are provided on one longitudinal side of each cultivation shelf, and a plurality of exhaust fans 41 are provided on the other longitudinal side. The plurality of cultivation racks 24 are arranged so that the side surfaces on which the intake fans 40 are arranged face each other and the side surfaces on which the exhaust fans 41 are placed face each other. An intake fan side passage 42 is formed between the cultivation racks 24 in which the side surfaces on which the intake fan 40 is disposed are opposed to each other, and an exhaust fan side passage 43 is formed between the cultivation racks 24 in which the side surfaces on which the exhaust fan 41 is disposed are opposed to each other. Is done. The air in the intake fan side passage 42 is sucked into the cultivation space by the intake fan 40 and the air in the cultivation space is discharged to the exhaust fan side passage 43 by the exhaust fan 41, so that the intake fan from the exhaust fan side passage 43. An airflow flowing into the side passage 42 is generated. [Selection] Figure 4【課題】栽培室内の環境を好適に保つ。【解決手段】植物栽培システム１００は、複数の栽培棚を有する複数の栽培ラック２４を備える。各栽培棚の一方の長手方向側面に複数の吸気ファン４０が設けられ、他方の長手方向側面に複数の排気ファン４１が設けられる。複数の栽培ラック２４は、吸気ファン４０が配置された側面同士が対向し、且つ排気ファン４１が配置された側面同士が対向するように並べられる。吸気ファン４０が配置された側面同士が対向した栽培ラック２４間に吸気ファン側通路４２が形成され、排気ファン４１が配置された側面同士が対向した栽培ラック２４間に排気ファン側通路４３が形成される。吸気ファン４０により吸気ファン側通路４２の空気が栽培空間内に吸気され、且つ排気ファン４１により栽培空間内の空気が排気ファン側通路４３に排出されることで、排気ファン側通路４３から吸気ファン側通路４２へ流れ込む気流が生じる。【選択図】図４
