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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/20/3/JEQ0200030658
Last checked: 12/12/2016
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| Publication Type:
| Refereed |
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| Author(s): | Exner, M. E.;
Burbach, M. E.;
Watts, D. G.;
Shearman, R. C.;
Spalding, R. F. |
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| Author Affiliation: | M.E. Exner, Conservation and Survey Div., M.E. Burbach, Water Center, D.G. Watts, Biological Systems Eng. Dep., R.C. Shearman, Agronomy Dep., and R.F. Spalding, Agronomy Dep. and Water Center, Institute of Agric. and Nat. Res., University of Nebraska, Lincoln, NE |
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| Title: | Deep nitrate movement in the unsaturated zone of a simulated urban lawn |
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| Source: | Journal of Environmental Quality. Vol. 20, No. 3, July-September 1991, p. 658-662. |
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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: | 5 |
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| Keywords: | TIC Keywords: Nitrification; Nitrogen; Contaminants; Groundwater; Nitrates; Lawn turf; Nitrate losses; Transport processes in soil systems; Leaching
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| Abstract/Contents: | "The increasing incidence of NO 3 contimination in municipal wells is a growing concern in the Midwest. While leachates from N fertilizers applied to agricultural lands can impact the water quality in municipal wells, there is also the potential for leachates from turfgrass fertilizers to be groundwater contaminants. In this study, five plots were treated with ammonium nitrate (34-0-0, N-P-K) at rates of 0, 1.0, 1.5, 2.0, and 2.4 kg N/100 m2 and irrigated. The turf received approximately 640 mm of water during the 34-d study. Analysis of soil water from 15, 6-m continuous cores showed that as much as 95% of the NO 3 applied in late August leached below the turfgrass root zone. Average NO 3 concentrations in the pulse ranged from 34 to 70 mg/L NO 3-N. Thirty-four days after fertilization the center of the pulse was at ~1.2 m with the leading edge at 2 to 2.5 m. This vertical rate of movement is similar to that predicted by the one-dimentional CMLS model. The relatively high uniform NO 3 concentrations in the unfertlized plot indicated that with excessive irrigation the water alone supplies NO 3 in excess of the turfgrass need." |
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| Language: | English |
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| References: | 14 |
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| See Also: | Other items relating to: GRDWTR |
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| Note: | Line drawings
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Exner, M. E., M. E. Burbach, D. G. Watts, R. C. Shearman, and R. F. Spalding. 1991. Deep nitrate movement in the unsaturated zone of a simulated urban lawn. J. Environ. Qual. 20(3):p. 658-662. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/20/3/JEQ0200030658
Last checked: 12/12/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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