Abstract: In a device a crop is cultivated in an at least substantially daylight-free environment, wherein the crop is exposed in an at least substantially fully conditioned cultivation space (10) to actinic artificial light from an array of artificial light sources (30) present in the cultivation space. During a cultivation cycle a power output of the artificial light sources (30) is adapted to an energy absorption of a part of the crop (50) illuminated thereby such that the crop close to each of the array of artificial light sources is subject to an at least substantially constant and at least substantially mutually equal vapour deficit.

Abstract: In a method and device for cultivating a crop, cultivation takes place in an at least a substantially daylight-free, climate-conditioned cultivation space. The cultivation space extends between a first side and an opposite second side, wherein the crop is exposed to photosynthetically active radiation from an array of spatially separated artificial light sources. An airflow is guided over the crop from the first side to the second side. The artificial light sources are spatially distributed over the crop. Downstream light sources of the array of light sources produce a higher dosage of photosynthetically active radiation than light sources located further upstream as seen in the flow direction of the airflow guided over the crop.

Abstract: In a device a crop is cultivated in an at least substantially daylight-free environment, wherein the crop is exposed in an at least substantially fully conditioned cultivation space (10) to actinic artificial light from an array of artificial light sources (30) present in the cultivation space. During a cultivation cycle a power output of the artificial light sources (30) is adapted to an energy absorption of a part of the crop (50) illuminated thereby such that the crop close to each of the array of artificial light sources is subject to an at least substantially constant and at least substantially mutually equal vapour deficit.

Abstract: In a device a crop is cultivated in an at least substantially daylight-free environment, wherein the crop is exposed in an at least substantially fully conditioned cultivation space (10) to actinic artificial light from an array of artificial light sources (30) present in the cultivation space. During a cultivation cycle a power output of the artificial light sources (30) is adapted to an energy absorption of a part of the crop (50) illuminated thereby such that the crop close to each of the array of artificial light sources is subject to an at least substantially constant and at least substantially mutually equal vapour deficit.

Abstract: In a method and device for cultivating a crop cultivation takes place in an at least substantially daylight-free, climate-conditioned cultivation space. The cultivation space extends between a first side and an opposite second side, wherein the crop is exposed to photosynthetically active radiation from an array of spatially separated artificial light sources. An airflow is guided over the crop from the first side to the second side. The artificial light sources are spatially distributed over the crop. Downstream light sources of the array of light sources produce a higher dosage of photosynthetically active radiation than light sources located further upstream as seen in the flow direction of the airflow guided over the crop.