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nature : also known as the peat bog or other. Coal category. The smallest degree of coalification coal. By the marsh areas of plant breeding, the crust slowly sinking gradually into thick plot, or buried in the seabed sediment, is being affected by the bacterial action, which undergo chemical changes. Brown or black. Great water content, the carbon content below 50%. Also contains a lot of carbohydrates and lignite different. Fertilizer can be directly used, the system can also be used for bacterial fertilizer, granular fertilizer and compost, composting and so on. After drying can be used as fuel, chemical, industrial raw materials, the construction industry insulation materials. Humic acid can also extract preparation and fertilizer.
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