| 摘要 |
PURPOSE:To obtain long-acting fertilizer having soil-improving effect and improving the earth environment by raising temperature of a waste raw material as a substance containing organic substance, a substance containing K and Na, a substance containing Ca or Mg or a substance containing silica under restriction of oxygen. CONSTITUTION:A waste material containing at least a species of a substance containing an organic substance, a substance containing potassium and/or sodium, a substance containing calcium and/or magnesium and a substance containing silica is used as a raw material. Temperature of said raw material is raised under shielding or restricting oxygen and an insoluble melt like as coal and glass is generated to afford the objective fertilizer. Said fertilizer is applied to soil and moisture absorption, water retentivity and air diffusebility of soil, and retentivity and physical properties of the fertilizer are improved, then soil tending to have acidic property is neutralized, thus good environment is given to useful soil bacteria. |
