ASA Section: Environmental Quality Session: Agricultural Practices to Improve Nitrogen-Use Efficiency and Mitigate Greenhouse Gas Emission: II (ASA, CSSA and SSSA International Annual Meetings)

248 Agricultural Practices to Improve Nitrogen-Use Efficiency and Mitigate Greenhouse Gas Emission: II

Oral Session

ASA Section: Environmental Quality

Nitrogen is a major limiting nutrient for crop production. As a result, substantial amounts of N fertilizers have been applied to sustain and/or increase yields. This has also resulted in major environmental consequences, such as N leaching in the groundwater and emission of N2O. Agricultural practices contribute about 70% of the global N₂O emission. This session will discuss agricultural management options, such as N fertilization, cover cropping, crop rotation, fallow management, tillage, etc. that reduce N fertilization rates to crops and greenhouse gas emissions, increase N-use efficiency reducing N losses via emission or leaching, and sustain crop yields and quality.

Cosponsor(s):

Soil Carbon and Greenhouse Gas Emissions Community

Tuesday, November 4, 2014: 7:55 AM-11:30 AM

Hyatt Regency Long Beach, Shoreline A

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Community Leader:

Jane M-F Johnson

Presider:

Maysoon M. Mikha

7:55 AM

Introductory Remarks

8:00 AM

248-1

Improving in-Season Corn Nitrogen Fertilizer Rates with a GIS-Based Nitrogen Transformation and Loss Model.
Brad C. Joern, Purdue University; Philip Hess, Purdue University; James J. Camberato, Purdue University

Audio File Recorded Presentation

8:15 AM

248-2

Site Specific, Weather Adjusted, Real Time Nitrogen Recommendations for Maize: Adapt-N Increased Grower Profits and Decreased Nitrogen Inputs and Losses in Three Seasons of on-Farm Strip Trials.
Bianca Moebius-Clune, USDA-NRCS; Harold van Es, Cornell University; Jeff Melkonian, Cornell University; Laura Joseph, Cornell University; Daniel Moebius-Clune, Cornell University; Arthur T DeGaetano, Cornell University; Shannon L. Gomes, Cedar Basin Crop Consulting, Inc.

Audio File Recorded Presentation

8:30 AM

248-3

Modeling Nitrogen Loss and Mitigation Potentials of Enhanced-Efficiency Nitrogen Fertilizers from Agricultural Soil System.
Ram Gurung, Colorado State University

Audio File Recorded Presentation

8:45 AM

248-4

Assessing the Impact of Stabilized Urea Fertilizers on Ammonia Volatilization Under Controlled Environment and Soil Conditions.
Nils Yannikos, University of Saskatchewan; Richard Farrell, University of Saskatchewan; Fran L. Walley, University of Saskatchewan

9:00 AM

248-5

N-Fertilizer Use Efficiency of Split-Application for Potato.
Lincoln Zotarelli, University of Florida; Libby R Rens, University of Florida; Ashok K. Alva, USDA-ARS; Kelly Morgan, University of Florida; Diane L. Rowland, University of Florida; Guodong Liu, University of Florida

Audio File Recorded Presentation

9:15 AM

248-6

A Long Term Trial Evaluating Nitrogen Recovery of Applied Dairy Manure By Three Forage Species.
Derek Hunt, Agriculture & Agri-Food Canada; Shabtai Bittman, Agriculture & Agri-Food Canada

9:30 AM

248-7

Switchgrass Intercropped with Alfalfa Results in Significant Reductions in Nitrogen Applications, Energy Savings, and Reductions in Nitrous Oxide Emissions.
Manmeet Pannu, University of Washington; Kelley Meinhardt, University of Washington; Anthony Bertagnolli, University of Washington; Sally Brown, University of Washington; Steven C. Fransen, Washington State University; David Stahl, University of Washington; Stuart Strand, University of Washington

Audio File Recorded Presentation

9:45 AM

Break

10:00 AM

248-8

Using Alternative Water Management to Reduce Greenhouse Gas Emissions and Maintain Yields in California Rice Systems.
Gabriel LaHue, University of California-Davis; Arlene Arlene Adviento-Borbe, University of California-Davis; Chris van Kessel, University of California-Davis; Bruce Linquist, University of California-Davis

Audio File Recorded Presentation

10:15 AM

248-9

Water-Conserving Practices in Arkansas Rice Production to Improve Soil N Availability and Reduce Greenhouse Gas Emissions.
Daniel C. Olk, USDA-ARS National Laboratory for Agriculture and the Environment; Merle M. Anders, University of Arkansas

10:30 AM

248-10

Nitrogen and Carbon Transformations, Water Use Efficiency and Ecosystem Productivity in Monocultures and Wheat-Bean Intercropping Systems.
Tejendra Chapagain, University of Alberta

Audio File Recorded Presentation

10:45 AM

248-11

Biochar Alters Manure's Effect on Nitrogen Cycling and Greenhouse Gas Emissions in a Calcareous Soil.
Rodrick D. Lentz, USDA-ARS; James A. Ippolito, USDA-ARS Northwest Irrigation & Soils Research Lab; Kurt A Spokas, USDA-ARS-

Audio File Recorded Presentation

11:00 AM

248-12

Improved Nitrate Retention and Reduced N2O Emissions with Aged Biochar.
Claudia Irene Kammann, University Giessen; Ghulam Haider, University Giessen; Jonathan Mengel, HS Geisenheim University; Otmar L�hnertz, Hochschule Geisenheim University; Christoph Mueller, Justus-Liebig Univesity Giessen

11:15 AM

248-13

Evaluation of Factors Affecting Nitrous Oxide Emission and N Transformation in a Sandy Loam Soil.
Zejiang Cai, USDA Agricultural Research Service; Suduan Gao, USDA Agricultural Research Service; Aileen Hendratna, USDA Agricultural Research Service; Minggang Xu, CAAS Institute of Agricultural Resources and Regional Planning; Yinghua Duan, CAAS Institute of Agricultural Resources and Regional Planning; Brad Hanson, University of California, Davis

Audio File Recorded Presentation

11:30 AM

Adjourn

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