HYDROPONIC CULTIVATION DEVICE AND HYDROPONIC CULTIVATION METHOD

摘要

To grow a plant (100) which stores nutrients synthesized in an above-ground part (A) into an underground part (B), a hydroponic cultivation apparatus (1) waters the underground part (B). The hydroponic cultivation apparatus (1) includes: a void portion (20) housing the underground part (B) while establishing a substantially sealed state; a sensor (14) which detects an amount of moisture in the void portion (20) at the underground part (B) or around the underground part (B) ; an air conditioning fan (41) which introduces outside air to the void portion (20) and controls temperature and humidity inside the void portion (20); and a controller (3) which controls the amount of moisture detected by the sensor (14) by driving the air conditioning fan (41) in such a way as to adjust an amount of the outside air or an introduction period of the outside air.