Showa Denko K.k.

Yamaguchi University

Hironori Ara

Hiroshi Suzuki

Ryouichi Takeuchi

Masayoshi Shigyo

Naoki Yamauchi

Misato Matsumoto

Yuki Tonooka

Akihiro Shimokawa

A plant-cultivating method is provided which comprises a step (A) of irradiating a plant with a red light and a step (B) of irradiating a plant with a blue light, and a step (C) of irradiating a plant with a light predominantly comprised of far-red light wherein the step (A), the step (B) and the step (C) are independently and separately carried out for a predetermined period of time. The light irradiated at each of the steps (A), (B) and (C) has at least 60%, based on the total emission intensity of the light, of an emission intensity ratio of red light, blue light or far-red light.

Method for cultivating plant

A plant-cultivating method is provided which comprises a step (A) of irradiating a plant with a red light and a step (B) of irradiating a plant with a blue light, wherein the step (A) and the step (B) are independently carried out for a predetermined period of time under cultivation conditions such that a fertilizer is used for each of the step (A) and the step (B), of which at least the fertilizer used for the step (A) is applied in the form of a nutritious liquid containing fertilizer ingredients and further carbon dioxide added therein. Preferably, a nutritious liquid is applied at each of the step (A) and the step (B), and the nutritious liquid applied at the step (A) contains carbon dioxide at a concentration higher than that in the nutritious liquid applied at the step (B).

A plant-cultivating method is provided which comprises a red light irradiation step (A) and a blue light irradiation step (B), wherein the step (A) and the step (B) are independently carried out for a predetermined period of time under cultivation conditions such that a fertilizer is used at each of the step (A) and the step (B), of which at least the fertilizer used at the step (B) is applied in the form of a nutritious liquid containing fertilizer ingredients and further an increased amount of dissolved oxygen, which nutritious liquid is prepared by adding oxygen therein. Preferably, a nutritious liquid is applied at each of the step (A) and the step (B), and the nutritious liquid applied at the step (B) contains dissolved oxygen at a content higher than that in the nutritious liquid applied at the step (A).

Growing community of inventors

Tokyo, Japan

Hironori Ara