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Essential animals for the cycles of carbon (C) and nitrogen (N). Generates excretions that can be used by plants as a highly nutritious natural fertilizer, earthworm or humus excrement contains mainly from 1.5% to 3% of Nitr√©geno (N), from 0.5 to 1.5% of Phosphorus and Potassium and from 2.5 to 8.5 % calcium Characteristics Commonly […]