1. A method of increasing the vegetation of plants, comprising supplying a light flux from the emitter, characterized in that the light flux is passed through a polarizer, polarized in it completely or partially, and directed toward the plants. The method according to claim 1, characterized in that, in order to expand the functionality of the device, in it the density or type, or density and type of polarization is regulated by an electric or magnetic field, or electric and magnetic fields. A device for implementing the method according to claim 1, containing a dielectric polarizer located in the path of the light flux in order to increase the vegetation of plants and simplify the design. The device according to claim 3, characterized in that the optical surface of the polarizer or the polarizing medium of the polarizer with oriented polarizing particles, for example, is normal to or close to the optical axis of the radiation source. The device according to claim 3, characterized in that electrodes are inserted into it, between which a polarizer is placed, and the electrode leads are galvanically connected to the output of the control unit. The device according to claim 5, characterized in that the electrodes are transparent and overlap, for example, the working surface of the polarizer. The device according to PP.5 and 6, characterized in that it additionally introduces a control winding located in the plane of the polarizer and connected to the current output of the control unit.1. Способ повышения вегетации растений, включающий подачу светового потока от излучателя, отличающийся тем, что световой поток пропускают через поляризатор, поляризуют в нем полностью или частично и направляют в сторону растений.2. Способ по п.1, отличающийся тем, что, с целью расширения функциональных возможностей устройства, в нем плотность или вид, или плотность и вид поляризации регулируют электрическим или магнитным полем, или электрическими и магнитными полями.3. Устройство для осуще