PROBLEM TO BE SOLVED: To provide a hydroponics apparatus which can inhibit the recombination of cluster broken water produced by cluster breakage, and can contribute to environmental protection through energy saving and CO2emission reduction. SOLUTION: An ultrasonic atomizer 1 atomizes a liquid fertilizer. The ultrasonic atomizer 1 has a magnet 11 for applying a magnetic field to the inside of a chamber 102 which is an atomized liquid fertilizer-generating region, or an electrode for applying an electric field. COPYRIGHT: (C)2011,JPO&INPIT
