This invention provides the cultivation apparatus which can control ground temperature with comparatively high precision at low cost. A cultivation apparatus according to an aspect of the present invention is a cultivation apparatus that includes a medium part for growing a crop and a cultivation liquid supply mechanism that supplies a cultivation liquid to the medium part, and the medium part is cultivated by a capillary phenomenon. It has a region to which the liquid is supplied, and further includes a temperature adjustment mechanism that adjusts the temperature of the cultivation liquid supplied to the medium part. The cultivation liquid supply mechanism has a cultivation liquid tank that stores the cultivation liquid, a storage tank that primarily stores the cultivation liquid supplied from the cultivation liquid tank, and a liquid feeding unit that distributes the cultivation liquid from the storage tank to the medium part. And the said temperature control mechanism is good to be attached to the said cultivation liquid tank or the liquid feeding part. It further comprises a cultivation liquid auxiliary supply mechanism for supplying the cultivation liquid in the cultivation liquid tank from above the medium part, and the temperature adjusting mechanism is attached to the cultivation liquid tank and is supplied to the medium part by the cultivation liquid auxiliary supply mechanism. The cultivated liquid may be circulated to the cultivated liquid tank through the storage tank.本発明は、低コストで比較的高精度で地温を制御できる栽培装置を提供するものである。本発明の一態様に係る栽培装置は、作物を着生させる培地部と、この培地部に栽培液を供給する栽培液供給機構とを備える栽培装置であって、上記培地部が毛管現象により栽培液が供給される領域を有し、上記培地部に供給する栽培液の温度を調節する温度調節機構をさらに備える。上記栽培液供給機構が、栽培液を貯留する栽培液槽、この栽培液槽から供給される栽培液を一次貯留する貯留槽及びこの貯留槽から培地部に栽培液を流通する送液部を有し、上記温度調節機構が上記栽培液槽又は送液部に付設されているとよい。上記栽培液槽の栽培液を上記培地部の上方から供給する栽培液補助供給機構をさらに備え、上記温度調節機構が上記栽培液槽に付設され、上記栽培液補助供給機構により培地部に供給された栽培液を上記貯留槽を介して栽培液槽に循環するとよい。
