Session: 5 Minute Rapid: Denitrification Strategies to Reduce Nutrient Excesses in Waterways (ASA, CSSA and SSSA International Annual Meetings (2016))

296 5 Minute Rapid: Denitrification Strategies to Reduce Nutrient Excesses in Waterways

Oral Session

ASA Section: Environmental Quality

Nutrient losses from agronomic systems to surface and groundwater continue as a vexing problem associated with producing food for a growing population. Denitrification is one process by which nitrate-N can be removed from agricultural runoff. A number of practices enhance denitrification: e.g. natural and constructed wetlands, saturated buffers, bioreactors. This session is designed to bring together researchers and practitioners from the wide disciplines working on denitrification (e.g. subsurface drainage, microbiology, ecology, soil science, agronomy) to explore not only nitrate-N removal, but also total outcomes on water and environmental quality (nutrients and contaminants of emerging concern), gaseous consequences, and microbial effects.

Approved for 1.0 SW CEUs

Cosponsor(s):

Managing Denitrification in Agronomic Systems Community

Nutrients and Environmental Quality Community

Tuesday, November 8, 2016: 2:45 PM-4:05 PM

Phoenix Convention Center North, Room 127 C

Organizer:

Gary W. Feyereisen

Moderator:

Gary W. Feyereisen

2:45 PM

Introductory Remarks

2:50 PM

296-1

Monitoring Water Quality and Hydrology of an Agricultural Subsurface Drainage System.
Jeppe H. Kjaersgaard, Minnesota Department of Agriculture

Audio File Recorded Presentation

2:55 PM

296-2

Analyzing Denitrification in Saturated Riparian Buffers.
Tyler A. Groh, Iowa State University; Thomas M. Isenhart, Iowa State University; Morgan P. Davis, Iowa State University; Dan B. Jaynes, USDA-ARS National Laboratory for Agriculture and the Environment; Timothy Parkin, USDA-ARS National Laboratory for Agriculture and the Environment

Audio File Recorded Presentation

3:00 PM

296-3

Saturated Buffers for Removing Nitrate from Artificial Subsurface Drainage.
Dan B. Jaynes, USDA-ARS National Laboratory for Agriculture and the Environment; Thomas M. Isenhart, Iowa State University

Audio File Recorded Presentation

3:05 PM

296-4

Design Modification and Early Performance of an in-Ditch Denitrifying Bioreactor.
Laura Christianson, University of Illinois; Allan Hertzberger, University of Illinois-Urbana-Champaign; Ray B. Bryant, USDA-ARS; Peter J.A. Kleinman, USDA-ARS; Arthur L. Allen, University of Maryland Eastern Shore; Amy Collick, USDA-ARS; Anthony R. Buda, USDA-ARS; Eric B. May, University of Maryland Eastern Shore; Emily MacLauren Bock, Virginia Tech; Zachary Easton, Virginia Tech

Audio File Recorded Presentation

3:10 PM

296-5

Monitoring the Start up of a Three-Cell Denitrifying Bioreactor.
Gary W. Feyereisen, USDA-ARS

Audio File Recorded Presentation

3:15 PM

Break

3:20 PM

Discussion

4:05 PM

Adjourn

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