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Hi, I have 500 tons of Bone sludge as dry powder which is a organic manure contains Organic carbon 29%, Nitrogen 2%, Phosphorus 9%, Pottassium 0.36%, calcium 3%, Magnesium 3.84%, Iron 1882 ppm, Manganese 22ppm, zinc158 ppm and copper 6.5 ppm.pH 6.84. Anybody needs please contact. Location...