3 edition of An evaluation of the potential for using drainage control to reduce nitrate loss from agricultural fields to surface waters found in the catalog.

An evaluation of the potential for using drainage control to reduce nitrate loss from agricultural fields to surface waters

a bibliography for teachers.

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Published by Administrator in Water Resources Research Institute of the University of North Carolina

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      • Bibliography: p. 41-42.

        StatementWater Resources Research Institute of the University of North Carolina
        PublishersWater Resources Research Institute of the University of North Carolina
        Classifications
        LC Classifications1978
        The Physical Object
        Paginationxvi, 136 p. :
        Number of Pages75
        ID Numbers
        ISBN 10nodata
        Series
        1
        2no. 128.
        3Report (Water Resources Research Institute of the University of North Carolina) ;

        nodata File Size: 4MB.


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An evaluation of the potential for using drainage control to reduce nitrate loss from agricultural fields to surface waters by Water Resources Research Institute of the University of North Carolina Download PDF EPUB FB2


The increase in crop yields are attributed to increased water availability and an associated increase in nitrogen uptake by the plants Poole et al. 3, right are often used, and individual systems, irrigating 120—500 acres, typically draw from their own well. The transformation among the inorganic forms can occur quickly and is largely controlled by soil microorganisms. Water from the DWM tile system flowed laterally to the nearby FD tile system, increasing flow and nitrate loss from the FD system.

Some of the most productive lands use drainage or irrigation, and the ability to control water regimes provides great advantages. For additional information, see the new project report. For example, higher than normal precipitation during April and May resulted in higher than normal tile flow volumes, nitrate concentrations in tile flow, and nitrate losses. Distinct seasonal patterns among the three contaminants highlights the complexity of integrated water quality assessments.

The result is increased revenue to the producer in addition to enhanced nutrient capture in the crop itself.

[PDF] Fate of water and nitrate using drainage water management on tile systems in east

They will use this as a control to further evaluate how deep-chisel plowing affects surface runoff and nutrient movement in the Lower Mississippi River Valley. " Another target audience is the research community. Watershed assessment studies for the South Fork will include combined geographic analyses of soil survey, topographic, crop cover, and conservation-practices inventory data to improve our ability to assess the targeting of conservation practices towards sensitive lands.

During some monthly sampling times there were significant gas flux differences in groundwater treatment and control plots, but this did not occur every month. During this time, the water management model DRAINMOD Skaggs, 1982, 1999; Skaggs et al. Right: Flexible corrugated PVC drains allow for rapid and durable installation.

Two sub-objectives are: a Quantify extent and placement of conservation practices in the South Fork watershed and impacts of those practices on water and soil quality. In Fall 2016 and 2017, Fox brought 14-16 undergraduate students from Washington College for a field trip to the farm with Davidson's PhD student Jake Hagedorn to observe our field methods and to discuss the experimental design and our hypothesis concerning nitrate reduction and greenhouse gas production.

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One oral presentation and one poster on the project were given at AGU in December 2018. Piezometers for sampling soil water 6. Preliminary conclusions We provisionally conclude that raising the groundwater level with drainage control structures effectively reduces in nitrate leaching by promoting subsoil denitrification, but causes only a modest and inconsistent increase in N2O emissions, indicating little or no pollution swapping of nitrate reduction for greenhouse gas emissions.

This also addresses other concerns with inadequate drainage, like high nitrogen losses through denitrification.