METHOD FOR RAISING LEAF-AND-STEM VEGETABLES AND LIGHT SOURCE DEVICE FOR RAISING LEAF-AND-STEM VEGETABLES Russian patent published in 2018 - IPC A01G7/04 A01G9/20 

FIELD: agriculture.

SUBSTANCE: inventions relate to agriculture, in particular to horticulture. In the method, a plurality of blue light-emitting diodes (LEDs) are disposed in the central part of the light source device, a plurality of red LEDs are disposed in the peripheral part of the light source device, mix a plurality of white LEDs with red LEDs and position the white LEDs in the peripheral part of the device, move the light source device to a position, in which the blue LEDs irradiate the top of the stem of the leaf vegetable, and the red LEDs irradiate leaves of the leafy vegetable, during the initial growth period, and terminate the irradiation with light from the blue LEDs and red LEDs. Light is irradiated from the white LEDs and the light source device is moved vertically to a position, in which white LEDs irradiate leaves of leafy vegetables during a late growth period. Device is configured to irradiate leaf vegetables with light to grow them and comprises a plurality of blue LEDs provided in the central portion of the lower surface of the substrate to irradiate the area, turned to the stem of a leafy vegetable, with light suppressing the growth of the stem; a plurality of red LEDs provided in the peripheral portion of the lower surface of the substrate to irradiate a region facing the leaves of the leafy vegetable with light accelerating the growth of the leaves; a plurality of white LEDs mixed with red LEDs located in the peripheral portion of the substrate; a device for supporting light sources that supports blue, red and white LEDs and is arranged to move vertically to selectable positions facing the leafy vegetable; and an irradiation control device for controlling various combinations of colors of light emitted by blue, red and white LEDs.

EFFECT: inventions make it possible to accelerate the growth of leaves of leafy vegetables.

3 cl, 14 dwg