abstract |
PROBLEM TO BE SOLVED: To provide an apparatus for sterilizing, deodorizing, degassing and supplying water in a stable state in plant hydroponics and a cultivation method using the apparatus. . In order to solve the above-mentioned problems, technical measures have been taken to apply ultrasonic vibration to cultivation water, apply ultraviolet rays, and further apply ozone and near infrared rays. Moreover, it is a cultivation method using these. |