To provide a composite culture plant capable of solving problems for example, in prior mutual culture facility, a spinach water culture chamber and mushroom culture chamber are formed as individual culture chambers, and running cost cannot be reduced so much.SOLUTION: A composite culture plant 10 is configured to feed circulated air into a chamber mechanism 16 directly from an air temperature/humidity adjustment apparatus 15, and temperature, humidity, and carbon dioxide density of the circulated air are made to become uniform as possible in the chamber mechanism 16, then, the circulated air is fed into a culture chamber 11, for simultaneously culturing leaf vegetables and mushrooms in the culture chamber 11. By such a configuration, in the culture chamber 11, the circulated air is circulated for temperature, humidity, carbon dioxide density of the circulated air are made to become uniform as possible, unevenness of a culture condition in the culture chamber is prevented, high quality leaf vegetables and mushrooms are cultured, running cost can be reduced, and enterprise profit ability can be enhanced.SELECTED DRAWING: Figure 1【課題】従来の相互栽培設備では、ホウレンソウ水耕栽培室とキノコ類栽培室とは、個別の栽培室として形成され、ランニングコストの低減にも限界があるという問題がある。【解決手段】本発明の複合栽培プラント１０では、その栽培室１１内にて葉物野菜とキノコ類とを同時栽培するため、気温湿度調整装置１５から、直接、循環空気をチャンバー機構１６内へと送り出し、チャンバー機構１６内にて循環空気の温度、湿度、二酸化炭素濃度を出来る限り均一化してから、その循環空気を栽培室１１内へと送り出す。この構造により、栽培室１１内には、上記循環空気が流れることで、その温度、湿度や二酸化炭素濃度が出来る限り均一化され、栽培室内での栽培条件の片寄りを防止し、高品質な葉物野菜及びキノコ類を栽培すると共に、ランニングコストを低減し、事業採算性を向上させることができる。【選択図】図１
