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  • Nitrate movement through the unsaturated zone o...
Text

Nitrate movement through the unsaturated zone of a sandy soil in the lower Wisconsin River Valley

Author
Lowery, Birl
Date
  • 1995
Publisher
Madison, Wisconsin: Water Resources Center, University of Wisconsin–Madison
Summary
  • Nitrate (NO³) contamination of groundwater has been well documented. Nonpoint sources resulting from fertilizer use in agriculture are often to blame for much of this contamination. The research presented in this report was conducted to determine the rate at which nitrogen (N) moves through the root zone to the vadose zone of soils and the groundwater under a sandy soil along the Lower Wisconsin River Valley (LWRV). Rainfall was greater than normal during the 1990 growing season; several large storms caused deep percolation of water and NO³. The largest storm (7cm) occurred immediately following N fertilizer application, creating a worst-case scenario with respect to NO³ leaching. As a result of this storm, appreciable increases in NO³-N in soil-solution occurred as deep as 250 cm (8 ft) in the 12 days following N application. A six-ford increase in NO3 -N concentrations was found in groudwater samples collected adjacent to the research plots 2 months after nitrogen fertilization.
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https://digital.library.wisc.edu/1711.dl/L3R5WD74BFTCZ8M

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Author
Lowery, Birl
Author
Fermanich, Kevin
Author
Grant, Steven C.
Author
McSweeney, Kevin
Author
Kusow, Wayne R.
Date
1995
Publisher
Madison, Wisconsin: Water Resources Center, University of Wisconsin–Madison
Language
English
Collections
Wisconsin Groundwater Research and Monitoring Program Reports
Ecology and Natural Resources Collection
Series
Groundwater research report ; 95-05
Description of Original
v, 22 pages : illustrations ; 28 cm.
Part of
Groundwater research report

  1. [Cover]
  2. [Title Page]
  3. Abstract
  4. Contents
  5. Introduction
  6. Materials and methods
  7. Results and discussion
  8. Conclusions
  9. References
  10. [Cover]

Subjects

  • Groundwater — Wisconsin
  • Nitrates — Environmental aspects — Wisconsin — Wisconsin River Valley
  • Agricultural pollution — Wisconsin — Wisconsin River Valley
  • Groundwater — Pollution — Wisconsin — Wisconsin River Valley
  • Zone of aeration — Research — Wisconsin — Wisconsin River Valley
  • Soil permeability — Wisconsin — Wisconsin River Valley
From the Collection

Wisconsin Groundwater Research and Monitoring Program Reports

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From the Collection

Ecology and Natural Resources Collection

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