339 Nitrous Oxide Emissions From Agricultural Production Systems

Oral Session
S11 Soils & Environmental Quality

Hundreds of studies over the past few decades have measured nitrous oxide (N2O) emissions from agricultural cropping and animal production systems. However, there are relatively few methodologies which are proven and generally accepted for mitigating N2O emissions. The documentation of effective mitigation is more important than ever, as the possibility of marketable carbon offsets in the form of alternative agricultural practices becomes increasingly likely. The goal of this session is to discuss efforts which have demonstrated effective N2O mitigation, and preferably at the same time have assessed impacts on yields, production, and/or other agronomic and economic measures.


A05 Environmental Quality
Wednesday, November 3, 2010: 8:00 AM-12:00 PM
Long Beach Convention Center, Seaside Ballroom A, Seaside Level

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Rodney T. Venterea
Rodney Venterea
8:00 AM
Introductory Remarks
8:05 AM
Impact of Fertilization and Crop Rotation on Nitrous Oxide Emissions From Agricultural Soils.
Craig F. Drury, Agriculture and Agri-Food Canada; W. Dan Reynolds, Agriculture and Agri-Food Canada; Chin Tan, Agriculture and Agri-Food Canada; Xueming Yang, Agriculture and Agri-Food Canada; Wayne Calder, Agriculture and Agri-Food Canada
8:20 AM
Impacts of Treated and Slow Release Fertilizer Applications On Nitrous Oxide Emissions.
Curtis Dell, USDA-ARS Pasture Systems & Watershed Mgmt Research Unit; John Schmidt, USDA-ARS-PSWMRU; Ray Bryant, USDA-ARS-Pasture Systems & Watershed Management
8:35 AM
Seasonal Variability of Nitrous Oxide Emissions From Two Nitrogen Sources In a California Almond Orchard.
Daniel L. Schellenberg, University of California; Maria M. Alsina, University of California; Christine M. Stockert, University of California; David R. Smart, University of California
8:50 AM
Nitrous Oxide Emissions From Canola Fields with ESN Fertilizer Application.
Xiying Hao, AAFC Lethbridge Research Centre; Chunli Li, AAFC Lethbridge Research Centre; Robert Blackshaw, AAFC Lethbridge Research Centre; Kenneth Harker, Agriculture and Agri-Food Canada; John O'Donovan, Agriculture and Agri-Food Canada; George Clayton, AAFC Lethbridge Research Centre
9:05 AM
Nitrogen Source Effects On Nitrous Oxide Emissions From a Strip-Tilled Corn Field.
Ardell Halvorson, USDA-ARS; Stephen Del Grosso, USDA-ARS; Claudia Pozzi Jantalia, Embrapa Agrobiology
9:20 AM
N2O and CO2 Emissions From Mined Land Reclaimed Using Organic Amendments.
Tanushree Dutta, Pennsylvania State University; Richard Stehouwer, Pennsylvania State University
9:35 AM
Annual Nitrous Oxide Emissions in Response to Nitrogen Fertilizer Rates in Lettuce, Tomato, Wheat and Alfalfa Production Systems.
Martin Burger, University of California Davis; Richard F. Smith, University of California Agriculture and Natural Resources; Tim Hartz, University of California Davis; Johan Six, University of California Davis; William Horwath, University of California Davis
9:50 AM
10:05 AM
Mitigating Sources of Indirect Nitrous Oxide Emissions From Tile Drain by On-Site Wood-Chip Bioreactors.
Ryosuke Fujinuma, USDA-ARS Soil & Water Management Research Unit; Rodney Venterea, USDA-ARS Soil & Water Management Research Unit; Andry Ranaivoson, University of Minnesota; John Moncrief, University of Minnesota; Mark A. Dittrich, Minnesota Department of Agriculture
10:20 AM
Technologies to Mitigate Nitrous Oxide Emissions From Grazed Pastoral Agriculture.
Surinder Saggar, Landcare Research; Jiafa Luo, AgResearch; Jagrati Singh, University of Melbourne; Nanthi Bolan, University of South Australia; M. Zaman, Summit-Quinphos New Zealand Ltd; Dong-Gill Kim, Landcare Research; Neha Jha, Massey University
10:35 AM
Soil Microbial Communities Associated with Nitrous Oxide Fluxes Are Affected by Seasonal Variation and Tillage System.
Kari Dunfield, University of Guelph; Claudia Wagner-Riddle, University of Guelph
11:05 AM
N2o Emissions Related to Soil Nitrifying and Denitrifying Microbes Over a Growing Season with Corn (Zea mays L.) Biomass Removal.
Deanna Nemeth, University of Guelph; Bill Deen, University of Guelph; Claudia Wagner-Riddle, University of Guelph; Kari Dunfield, University of Guelph
11:20 AM
What Is the Impact On Farmer Nitrogen Fertilizer Use of Incorporating the Effects of Nitrous Oxide Emissions?.
Deli Chen, University of Melbourne; Bob Farquharson, University of Melbourne; Yong Li, University of Melbourne
11:35 AM
Terrestrial Plants: An Ignored Source of Nitrous Oxide Emission.
Kewei Yu, Troy University; G. Chen, Institute of Applied Ecology
11:50 AM