Light source for plant cultivation and method for plant cultivation
AssigneeSeoul Viosys Co., Ltd.
InventorSe Ryung Kim
Life of this patent
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Abstract
A light source for plant cultivation and a plant cultivation method are provided. The plant cultivation method includes planting germinated seeds of a plant; and growing the plant by applying light treatment to the plant. In growing the plant, main light treatment of supplying main light to the plant and dark treatment of cutting off supply of the main light to the plant are alternated. The main light has at least two peak wavelengths in the visible light spectrum. In addition, the main light has a PPFD of greater than 92 μmol/m2/s to less than 198 μmol/m2/s.
Claims20
A plant cultivation method comprising:
- planting germinated seeds of a selected plant in a hydroponics system, wherein the selected plant comprises lettuce;
- and
- alternately performing main light treatment and dark treatment,
- the main light treatment supplying main light to the selected plant, and
- the dark treatment cutting off supply of the main light to the selected plant;
- wherein the main light has at least two peak wavelengths in a visible light spectrum and an intensity of the main light has a greater than 198 PPFD (μmol/m2/s);
- and
- supplying auxiliary light in an UV spectrum to the selected plant, wherein the auxiliary light includes a highest peak wavelength in the UV spectrum having an auxiliary peak luminous intensity between ⅕ and ⅔ an intensity of each of two of the at least two peak wavelengths in the visible light spectrum, and
- wherein the two of the at least two peak wavelengths include a range of wavelengths located therebetween having a maximum luminous intensity at least three times lower than each of the two of the at least two peak wavelengths.
A light source for plant cultivation, comprising:
- a main light source configured for emitting main light toward a selected plant in a hydroponics system, wherein the selected plant is indicated as comprising lettuce, the main light having at least two peak wavelengths in a visible light spectrum and having an intensity greater than 198 PPFD (μmol/m2/s), and
- an auxiliary light source configured for emitting auxiliary light toward the selected plant, the auxiliary light includes a highest peak wavelength in an ultraviolet (UV) spectrum, the highest peak wavelength having an auxiliary peak luminous intensity-ne between ⅕ and ⅔ a luminous intensity of each of two of the at least two peak wavelengths in the visible light spectrum,
- wherein the two of the at least two peak wavelengths include a range of wavelengths located therebetween having a maximum luminous intensity at least three times lower than each of the two of the at least two peak wavelengths, and
- wherein the main light source is turned on and off to alternate main light treatment of supplying the main light to the selected plant and dark treatment of cutting off supply of the main light to the selected plant.
Dependencies are inferred from the claim text.