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Comparison of extraction methods for copper, zinc, iron and manganese in soils of the state of Rio de Janeiro, Brazil


Comparison of extraction methods for copper, zinc, iron and manganese in soils of the state of Rio de Janeiro, Brazil



Revista Brasileira de Ciencia do Solo 25(3): 655-660



ISSN/ISBN: 0100-0683

The levels of copper, zinc, iron, and manganese were quantified in 103 samples from surface horizons of representative soils from Rio de Janeiro, Brazil. The extractant solutions used were Mehlich-1, DTPA-TEA, and HCl 0.1 mol/litre. The HCl 0.1 mol/litre solution extracted the highest amounts of the studied micronutrients. Mehlich-1 extracted the smallest amounts of Cu and Fe, and the DTPA-TEA extracted the smallest amounts of Zn and Mn.

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Accession: 003687324

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