| 摘要 |
PURPOSE:To provide a soil conditioner which can retain nutrients necessary for plants, facilitate ventilation, and promote the growth of plants and the melting of snow in places where it snows, containing ferromagnetic iron oxide as a main component. CONSTITUTION:Ferromagnetic iron oxide which can be obtd. as a by-product in the production of titanium or in the treatment of luquid waste contg. heavy metals is granulated pref. to a predetermined particle size and used as soil for plant cultivation by itself or in the form of a mixture with soil. The ferromagnetic iron oxide adsorbs nutrients such as ammonia, K, phosphorus, etc., effectively supplies them to the plants, and facilitates ventilation for roots. Further, the iron oxide converges terrestrial magnetism to generate strong magnetic gradient around the roots and promote the growth of the plants. When the iron oxide powder is sprayed over snow on the ground, it effectively absrobs solar heat, whereby the melting of snow is hastened. After the snow has been molten, it directly serves as a soil conditioner. |
