Made from birch and spruce wood, tested and studied, biochar is intended for cultivation media. Thanks to the activity of biochar, a large amount of nutrient molecules bind on its surface in relation to its size. When slowly released to plants, they balance the nutrient management in the soil. Biochar is a natural part of the ecosystem and, together with added microbes, provides favorable conditions for the flowering, growth and production of plants. It reduces soil acidification due to its alkalinity (pH 10).