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    • Ahumada Torres, Aída Inés de Lourdes; Schalscha B., Eduardo; Pratt, P. F.; Mattigod, S. V. (Soil Science Society of America, 1984)
      Extraction of Cd,Cu, Ni and Zn by BaCl(Ba(ClO-4)2 solutions from El Recuerdo(Vertisol) and Puerto Octay (Andept)soils was used to measure the amounts of metals remaining extractable during a 60-d storage period under air-dry ...