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Copper plant in nigeria

Aug 31, 2018 Vegetables constitute the lowest source of essential trace elements for people in developing countries like Nigeria. A study of copper and zinc contents in vegetable samples in this region showed that copper concentrations were 5 mg/kg in peppers, 4 mg/kg in onions, and 5.5 mg/kg in tomatoes, while zinc levels were 13.5 mg/kg in peppers, 16.75 mg/kg in onions, and 15.5 mg/kg in

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