公开(公告)号：US20210185936A1

公开(公告)日：2021-06-24

申请号：US17080379

申请日：2020-10-26

Applicant: SHOWA DENKO K.K.

Inventor： Fumihiko ANDO ,  Yao JU ,  Noriko OHTAKE ,  Shinji YAMAKI ,  Masaharu ISHIKURA

IPC: A01G7/04 ,  A01G22/15 ,  H05B47/155 ,  H05B47/16

Abstract: A plant cultivation device and the like capable of growing a plant while preventing leaves thereof from curling are provided. The device includes: a first illumination irradiating the plant to be cultivated with blue light; a second illumination irradiating the plant with red light; and a controller controlling irradiation of the blue light from the first illumination and irradiation of the red light from the second illumination, wherein the controller controls the blue light irradiation to be performed 21 hours or more a day including a case in which the blue light irradiation is performed 5 hours or more without performing the red light irradiation, and the red light irradiation to be performed 12 hours or more a day.