HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by McBride, M. B. Articles by Blasiak, J. J. Search for Related Content PubMed Articles by McBride, M. B. Articles by Blasiak, J. J. Agricola Articles by McBride, M. B. Articles by Blasiak, J. J.

Zinc and Copper Solubility as a Function of pH in an Acid Soil¹

ABSTRACT

Studies of the effect of pH and competing cations on Zn²⁺ and Cu²⁺ solubility in an acid mineral soil indicate the probable involvement of hydrous oxides of iron, aluminum, or manganese in the adsorption process. Adsorption on permanent charge sites of clays, or complexation with organic matter could not account for the apparent fixation of Zn²⁺ in a nonexchangeable form in the pH range of 5 to 7. Nucleation of Zn hydroxide on clay mineral surfaces may have produced the strongly pH-dependent retention in the soil; however, Cu²⁺ showed more evidence of being controlled by organic complexation mechanisms. All soil solutions were undersaturated with respect to the least soluble hydroxides and carbonates of Cu²⁺ and Zn²⁺, at least at pH values below 7, indicating that simple precipitation was not involved in metal retention in the soil.

¹ Contribution of the Dep. of Agronomy, Cornell Univ., Ithaca, NY 14853. Agronomy Paper no. 1317.

² Assistant Professor of Agronomy and Senior Undergraduate Agronomy Major, respectively.

Received for publication February 9, 1979. Accepted for publication April 18, 1979.

This article has been cited by other articles:

				K. M. Catlett, D. M. Heil, W. L. Lindsay, and M. H. Ebinger Soil Chemical Properties Controlling Zinc2+ Activity in 18 Colorado Soils Soil Sci. Soc. Am. J., July 1, 2002; 66(4): 1182 - 1189. [Abstract] [Full Text] [PDF]

				R. D. Harter and R. Naidu An Assessment of Environmental and Solution Parameter Impact on Trace-Metal Sorption by Soils Soil Sci. Soc. Am. J., May 1, 2001; 65(3): 597 - 612. [Abstract] [Full Text] [PDF]