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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/32/1/146
Last checked: 12/16/2016
https://dl.sciencesocieties.org/publications/jeq/pdfs/32/1/146
Last checked: 12/16/2016
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Gaskin, Julia W.;
Brobst, Robert B.;
Miller, William P.;
Tollner, E. William |
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| Author Affiliation: | Gaskin and Tollner: Biological and Agricultural Engineering Department, University of Georgia, Athens, Georgia; Miller: Crop & Soil Science Department, University of Georgia, Athens, Georgia; and Brobst: USEPA Region 8, Denver, Colorado |
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| Title: | Long-term biosolids application effects on metal concentrations in soil and bermudagrass forage |
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| Section: | Heavy metals in the environment
Other records with the "Heavy metals in the environment" Section
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| Source: | Journal of Environmental Quality. Vol. 32, No. 1, January/February 2003, p. 146-152. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Sewage sludge; Chemical properties of soil; Forage; Arsenic; Cadmium; Copper; Lead; Mercury (Elemental); Molybdenum; Nickel; Selenium; Zinc; Cynodon dactylon; Soil amendments
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| Abstract/Contents: | "The long-term application of biosolids that periodically contained elevated metal concentrations has raised questions about potential effects on animal health. To address these concerns, we determined metal concentrations (As, Cd, Cu, Pb, Hg, Mo, Ni, Se, and Zn) in both soil and bermudagrass [Cynodon dactylon (L.) Pers.] forage from 10 fields in the following categories of biosolids application: six or more years (>6YR), less than six years (<6YR), and no applications (NS). Soil metal concentrations in all groups were similar to values reported for mineral soils in Georgia, and well below USEPA cumulative limits. Average metal concentrations in the forage were below the maximum tolerable level (MTL) for beef cattle, although two biosolids-amended fields in the >6YR group produced forage that was at or near the MTL for Cd and Mo, and one field in the <6YR group produced forage above the MTL forr Cd. The Cu to Mo ratios in forage decreased with increasing time of sludge application, with the average in the >6YR group at a proposed 5:1 Cu to Mo ratio limit to protect ruminant health. Sulfur concentrations in the forage from all three groups was near the MTL of 4 g kg-1. The study indicated that toxic levels of metals have not accumulated in the soils due to long-term biosolids application. Overall forage quality from the biosolids-amended fields was similar to that of commercially fertilized fields; however, due to the relatively high S and potential for a low Cu to Mo ratio, Cu supplements should be used to ensure ruminant health." |
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| Language: | English |
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| References: | 33 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gaskin, J. W., R. B. Brobst, W. P. Miller, and E. W. Tollner. 2003. Long-term biosolids application effects on metal concentrations in soil and bermudagrass forage. J. Environ. Qual. 32(1):p. 146-152. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/articles/32/1/146
Last checked: 12/16/2016
https://dl.sciencesocieties.org/publications/jeq/pdfs/32/1/146
Last checked: 12/16/2016
Requires: PDF Reader |
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MSU catalog number: S 900 .J6 |
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