| 摘要 |
Plant nutrient product in deposit form for slow release of plant nutrients, containing a composted blend of bark, peat, biological sludge and/or organic household waste with the addition of plant nutrients and tracer elements. The blend is compressed to a high-density pellet form and is dried to a water content of 10-15 percent by weight. Density should be 0.8-1.0. Chemical binding agent for heavy metals may be included.<IMAGE> |
