| 摘要 |
PURPOSE:To provide the subject system effective for promoting plant growth, so designed that plate-like plastic magnet (s) prepared by incorporating a synthetic resin nylon 12 with Sr ferrite magnetic powder is put with its S-pole as the upper surface and a laminar sanitary cotton is laid thereon via e.g. a wire net and seeds are then spread on the cotton and raised in the presence of water contained in the cotton. CONSTITUTION:Plate-like plastic magnet (s) 2 with a 20-85 gauss of magnetic flux density prepared by hot molding of a blend of (A) 5-10wt.% of a synthetic resin nylon 12 and (B) 90-95wt.% of strontium ferrite magnetic powder is (are) put at the bottom of a water tank 1 with the S-pole as the upper surface (s); a rocky synthetic resin filter 3 is put thereon, and a laminar sanitary cotton 5 is laid thereon via a stainless steel wire net 4. Then, 2-5 plant seeds 7 per cm<2> are spread on the cotton and water is added to the cotton to such an extent that the cotton is in a moistened state at all times, thus effectively promoting plant growth. |
