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582 Soil Biology and Soil Nitrogen

Oral Session
S03 Soil Biology & Biochemistry
Monday, 6 October 2008: 8:25 AM-11:00 AM
George R. Brown Convention Center, 370C

Presiding:
Ronald Turco
8:25 AM
Introductory Remarks
8:30 AM
582-1
Gross Soil Nitrogen Mineralization across a Managed Northern Temperate Forest Chronosequece.
Sanjeev Kumar, St. Francis Xavier university; Lisa Kellman, St. Francis Xavier university
8:45 AM
582-2
Soil Nitrogen Storage and Fractions as Influenced by Tillage, Cropping System, and Nitrogen Source.
Upendra Sainju, USDA-ARS; Zachary Senwo, Alabama A&M University; Ermson Nyakatawa, Alabama A&M Univ.; Irenus A. Tazisong, Alabama A&M Univ.; Chandra Reddy, Alabama A&M University Accounts Payable
9:00 AM
582-3
Biodegradability and Biochemical Composition of Water-Extractable Organic Matter Recovered at Different Extraction Temperatures.
Michael Beare, New Zealand Institute of Crop & Food Research; Martin Chantigny, Agriculture and Agri-Food Canada; Denis Curtin, New Zealand Institute of Crop & Food Research; Catherine Scott, New Zealand Institute of Crop & Food Research; Tina Harrison-Kirk, New Zealand Institute of Crop & Food Research
9:15 AM
582-4
On the Release of Soil Exchangeable Nitrogen: Effect of Pre-Treatment with Water at Different Temperatures.
Martin Chantigny, Agriculture and Agri-Food Canada; Denis Curtin, New Zealand Institute of Crop & Food Research; Michael Beare, New Zealand Institute of Crop & Food Research; Tina Harrison-Kirk, New Zealand Institute of Crop & Food Research; Catherine Scott, New Zealand Institute of Crop & Food Research
9:30 AM
582-5
Effect of Carbon and Nitrogen Availability on the N Uptake Pathway of Soil Microorganisms.
Daniel Geisseler, University of California, Davis; William Horwath, University of California, Davis
9:45 AM
Break
10:00 AM
582-6
Dual Isotope Measurements to Identify and Quantify N Transformations in Soil.
Yvonne Oelmann, Johannes Gutenberg University; Kurt Emde, Johannes Gutenberg University; Jörg Grunert, Johannes Gutenberg University; Roland Bol, Institute of Grassland and Environmental Research; Wolfgang Wilcke, Johannes Gutenberg University
10:15 AM
582-7
Simulating the Impact of Climatic Variability on N2O Emissions from a Rain-Fed Wheat-Cropped Soil in a Semi-Arid Climate.
Deli Chen, University of Melbourne; Yong Li, The University Of Melbourne; Louise Barton, Univ. of Western Australia
10:30 AM
582-8
Agronomic and Environmental Implications of Soil Resource Heterogeneity at Small Scales.
Terry Loecke, Cary Institute of Ecosystem Studies; G. Philip Robertson, Michigan State University
10:45 AM
582-9
Balancing Resources from Plants and Soil--Ectomycorrhizas as Switch-Hitters?.
María Albarracín, University of California - Davis; Benjamin Houlton, University of California - Davis; Johan Six, University of California - Davis; Caroline Bledsoe, University of California - Davis
11:00 AM
Adjourn
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