An agricultural/horticultural greenhouse configured such that: at least some of the inner surface of the greenhouse is composed of house-interior-surface constituent members configured using materials containing a far-infrared-ray-emitting substance that radiates/absorbs far-infrared rays and has far-infrared emissivity of at least 0.6 heating or cooling pipes are arranged inside, on the surface of, or near the soil of the agricultural/horticultural greenhouse materials containing a far-infrared-ray-emitting substance that is identical to the far-infrared-ray-emitting substance of the house-interior-surface constituent members is preferably mixed into the soil far-infrared radiation emitted by the far-infrared-ray-emitting substance in the heated soil is absorbed by the far-infrared-ray-emitting substance of the house-interior-surface constituent members when the soil is heated by the heating pipes and far-infrared radiation emitted by the far-infrared-ray-emitting substance in the cooled soil is absorbed by the far-infrared-ray-emitting substance of the house-interior-surface constituent members when the soil is cooled by the cooling pipes. The present invention allows the heating or cooling temperature to be efficiently adjusted for soils and plants in greenhouses used for agriculture or other purposes.La présente invention concerne une serre agricole/horticole conçue de façon à ce quau moins une partie de la surface intérieure de la serre soit constituée déléments constitutifs de la surface de lintérieur de la serre utilisant des matériaux contenant une substance émettant un rayonnement infrarouge lointain qui émet/absorbe les rayonnements infrarouges lointains et dont lémissivité infrarouge est au moins égale à 0,6 à ce que des tuyaux de chauffage ou de refroidissement soient disposés à lintérieur, à la surface ou près du sol de ladite serre agricole/horticole à ce que des matériaux contenant une substance émettant un rayonnement infrarouge lointain identique