| 摘要 |
PROBLEM TO BE SOLVED: To provide a low cost culture soil for hydroponics, which has an excellent interior property and does not cause corrosion and container staining. SOLUTION: This culture soil for the hydroponics is characterized by comprising a glass foam obtained by heating raw materials constituted by mixing a glass material, a foaming agent, and a pigment. COPYRIGHT: (C)2007,JPO&INPIT
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