ARS | Publication request: N MANAGEMENT AND HYPOXIA: A RESEARCH FOCUS OF THE USDA-ARS NATIONAL SOIL TILTH LABORATORY

Submitted to: Farm Bureau Members National Convention
Publication Type: Abstract Only
Publication Acceptance Date: January 8, 2001
Publication Date: January 8, 2001
Citation: Dinnes, D.L., Jaynes, D.B., Hatfield, J.L., Burkart, M.R., Parkin, T.B., Cambardella, C.A., Karlen, D.L., Colvin, T.S., Kaspar, T.C., James, D.E. 2001. N management and hypoxia: A research focus of the USDA-ARS National Soil Tilth Laboratory. Farm Bureau Members National Convention. American Farm Bureau Federation, Washington, D.C.

Technical Abstract: Nitrogen contamination of surface waters has been implicated as a major contributing factor to hypoxia in the Gulf of Mexico, which has focused scrutiny on agricultural use of N fertilizers in the Midwest. The National Soil Tilth Laboratory established a research agenda investigating the links between N management and N contamination of water resources. Featured research topics will be the following: rate and timing of N fertilizer application and its impact on water quality; soil-N mineralization dynamics; soil organic matter relationships; tile drainage biofilters; plant-soil N relationships; and GIS and remote sensing applications for tracking N needs, inputs and fates.