To provide a cultivation system capable of suppressing occurrence of a growth difference between a plurality of plants by evenly irradiating the plurality of plants with light to increase an average weight of the plants.SOLUTION: A cultivation system has an irradiation device 100 and an installation table. The irradiation device 100 has: a first light source array 110 having a plurality of first and second light sources 111, 112 which are arrayed with regularity in a predetermined direction X； and a second light source array 120 which is provided in parallel with the first light source array 110, has a plurality of first and second light sources 121, 122 arrayed with regularity in the predetermined direction X, and in which the first and second light sources 121, 122 are arranged such that their colors shift from those of the first light source array 110, in which a plurality of objects to be irradiated which are severally arranged along the predetermined direction X around the first and second light source arrays 110, 120 and are irradiated with light by the first and second light source arrays 110, 120, and an installation location is defined by each object to be irradiated at the installation table.SELECTED DRAWING: Figure 3【課題】複数の植物に対して光を均一に照射して、植物の平均重量を増加させながら複数の植物の間における成長差の発生を抑制することが可能な栽培システムの提供。【解決手段】照射装置１００と設置台とを有し、照射装置１００は、所定の方向Ｘに規則性をもって配列される複数の第１、第２の光源１１１、１１２を有する第１の光源列１１０と、第１の光源列１１０に並んで設けられ、所定の方向Ｘに規則性をもって配列される複数の第１、第２の光源１２１、１２２を有し、第１、第２の光源１２１、１２２が第１の光源列１１０と色がずれるように配置される第２の光源列１２０とを有し、第１、第２の光源列１１０、１２０の周辺にそれぞれ所定の方向Ｘに沿って配置される複数の照射対象物に対して、第１、第２の光源列１１０、１２０によって光を照射し、設置台には、照射対象物ごとに設置場所が規定されている栽培システム。【選択図】図３
