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Water soluble fertilizer for Hydroponic and Fertigation solutions. Chemone manufactured O.M.R.I. listed for use in Organic agriculture under the USDA NOP rules For constant feeding and hydroponic systems, the range in common nutrients solutions is 0.01-0.1 ppm copper. To make a concentrated liquid stock solution. Add 0.15 grams to one liter final volume water. Then use this stock solution at 1 mL-10mL per gallon of working strength solution. This use rate(1-10mL/gallon) gives 0.01 to 0.1 ppm copper in the working solution.
