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 Google Scholar Google Scholar Articles by Dankert, W. N. Articles by Drew, J. V. Search for Related Content PubMed Articles by Dankert, W. N. Articles by Drew, J. V. Agricola Articles by Dankert, W. N. Articles by Drew, J. V.

Pedogenic Distribution of Zinc in Mollisols and Associated Entisols in Nebraska¹

ABSTRACT

The distribution of total Zn in a Udie Haplustoll (Moody) and a Typic Argiustoll (Holdrege) formed in Peoria loess in Nebraska is related to the accumulation of illuvial clay in these soils. In Typic Ustorthents (Crofton and Coly) formed in Peoria loess, a comparable distribution of noncarbonate clay and total Zn does not occur. Larger amounts of Zn in noncarbonate clay from the upper sola of the four profiles than in noncarbonate clay from their C horizons suggest that Zn is released from soil minerals and cycled by vegetation during biopedogenic weathering, then becomes associated with noncarbonate clay in the A horizons following decomposition of plant residues. In Moody and Holdrege, however, maximum amounts of Zn in the total soil occur in the B horizons of clay maxima, suggesting that Zn moves in association with clay from the A to the B horizons during the genesis of these soils.

¹ Contribution from the Dept. of Agronomy, Univ. of Nebraska, Lincoln. Published with the approval of the Director as paper no. 2812, Journal Series, Nebraska Agr. Exp. Sta.

² Former graduate student, Univ. of Nebraska, now Soil Scientist, SCS, USDA, Rock Rapids, Iowa, and Professor of Agronomy, Univ. of Nebraska, respectively.

Received for publication March 20, 1970. Accepted for publication July 16, 1970.