METHOD FOR ARTIFICIAL LIGHTING OF PLANTS IN GREENHOUSES
Inventor: Tyshkevich Evgenij Valentinovich (RU)
SUBSTANCE: invention relates to the field of lighting technology and may be used to grow crops under artificial lighting. In method intensities of light flow and spectral composition of light source are periodically changed. Illumination of plants in sheltered ground structures is realised on the basis of principle of doubling natural daily rhythm due to smooth changeover of illumination level from night to day and back. Changeover takes place twice a day, with account of change in moon and sun spectra of radiation. Besides peaks of maximum daily illumination correspond to moments of upper, daily, and lower, night, culminations of sun. Ratio of light and dark periods duration depends on extent of vegetative ripeness and type of grown crops.
EFFECT: method makes it possible to increase crop capacity by optimisation of light mode, to increase speed of plants growth, to reduce consumption of electric energy, as well as to expand range of application.