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 Bidwell, A. M. Articles by Dowdy, R. H. Search for Related Content PubMed Articles by Bidwell, A. M. Articles by Dowdy, R. H. Agricola Articles by Bidwell, A. M. Articles by Dowdy, R. H.

Cadmium and Zinc Availability to Corn following Termination of Sewage Sludge Applications¹

ABSTRACT

To assess the availability of sludge-borne Cd and Zn over time, corn (Zea mays L.) and soil (Typic Hapludoll silt loam) were sampled for 6 yr following termination of three annual applications of sewage sludge. Cumulative sludge applications totaled 0, 60, 120, and 180 Mg ha^–1. Sludge treatments consistently resulted in greater Cd and Zn accumulation in stover than did the control treatment for each of the 6 yr following the final sludge application. Cadmium and Zn concentration in stover increased linearly within treatment levels for all years. Concentrations of Cr, Cu, Ni, and Pb in stover and grain fluctuated annually, with no predictable effect of sludge rate. Of the metals measured in stover and grain, only stover Cd exceeded the suggested National Research Council tolerance level of 0.5 mg kg^–1 in animal feed for all sludge treatments in all years. Cadmium uptake decreased over time at all sludge rates, and was inversely related (P > 0.01) to time in years following terminal application. Zinc uptake declined slightly over time, although not to the same degree or with the same predictability as Cd uptake. Soil Cd and Zn extractable with DTPA and 1 M HNO₃ were highly correlated with plant metal uptake within years. However, metal uptake diminished with consecutive croppings for constant levels of extractable Cd and Zn. Hence, the reliability of either DTPA or 1 M HNO₃ in the prediction of Cd and Zn uptake in subsequent croppings is questionable.

Key Words: Heavy metals • Land disposal • Metal uptake

¹ Contribution from the Minnesota Agric. Exp. Stn. and the Soil and Water Manage. Res. Unit, USDA-ARS, St. Paul, MN 55108. Scientific Journal series Paper no. 14 978.

² Soil scientist, USDA-ARS; and research soil scientist, USDA-ARS, and professor of soil science, Univ. of Minnesota, St. Paul.

Received for publication August 27, 1986.

This article has been cited by other articles:

				B. F. Sukkariyah, G. Evanylo, L. Zelazny, and R. L. Chaney Cadmium, Copper, Nickel, and Zinc Availability in a Biosolids-Amended Piedmont Soil Years after Application J. Environ. Qual., November 7, 2005; 34(6): 2255 - 2262. [Abstract] [Full Text] [PDF]

				T. C. Granato, R. I. Pietz, G. J. Knafl, C. R. Carlson Jr., P. Tata, and C. Lue-Hing Trace Element Concentrations in Soil, Corn Leaves, and Grain after Cessation of Biosolids Applications J. Environ. Qual., November 1, 2004; 33(6): 2078 - 2089. [Abstract] [Full Text] [PDF]

				S. H. Chien, G. Carmona, L. I. Prochnow, and E. R. Austin Cadmium Availability from Granulated and Bulk-Blended Phosphate-Potassium Fertilizers J. Environ. Qual., September 1, 2003; 32(5): 1911 - 1914. [Abstract] [Full Text] [PDF]

				K. A. Barbarick and J. A. Ippolito Termination of Sewage Biosolids Application Affects Wheat Yield and Other Agronomic Characteristics Agron. J., September 1, 2003; 95(5): 1288 - 1294. [Abstract] [Full Text] [PDF]

				Z. Li, J. A. Ryan, J.-L. Chen, and S. R. Al-Abed Adsorption of Cadmium on Biosolids-Amended Soils J. Environ. Qual., May 1, 2001; 30(3): 903 - 911. [Abstract] [Full Text] [PDF]