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671 Tools for Improving Nitrogen Management
(S04 Soil Fertility & Plant Nutrition; S08 Nutrient Management & Soil & Plant Analysis )

Tuesday, 7 October 2008: 8:25 AM
George R. Brown Convention Center, 360F
Presiding:
R.S. Tubbs
8:25 AM
Introductory Remarks
8:30 AM
671-1
Evaluation of an Active Crop Canopy Sensor Using a Delta Yield Approach.
Bill Deen, University of Guelph; Adam Pfeffer, University of Guelph; Greg Stewart, Ontario Ministry of Agriculture & Food
8:45 AM
671-2
Crop Sensors for Variable-Rate Nitrogen Application to Cotton.
Peter C. Scharf, University of Missouri; Luciane Oliveira, University of Missouri; Earl Vories, USDA-ARS Cropping Systems & Water Quality Research Unit; David Dunn, University of Missouri; Gene Stevens, University of Missouri
9:00 AM
671-3
Potential for Fine-Tuning Rates of Nitrogen Using in-Crop Applications of Nitrogen Based on Greenseekertm Readings in Spring Cereals on the Canadian Prairies.
Guy Lafond, Agriculture and Agri-Food Canada; Chris B. Holzapfel, Indian Head Agricultural Research Foundation; Byron Irvine, Agriculture and Agri-Food Canada; Malcolm, J. Morrison, Agriculture and AgriFood Canada; Dean James, AAFC – Semiarid Prairie Agricultural Research Centre; William B. May, Agriculture and Agri-Food Canada
9:15 AM
671-4
Developing Infrastructure for Implementing Adaptive Nitrogen Management Practices for Corn on a Large Scale in Iowa.
Tracy Blackmer, Iowa Soybean Association; Peter Kyveryga, Iowa Soybean Association
9:30 AM
671-5
Implementing Adaptive Nitrogen Management Practices for Corn on a Large Scale: A case study in Iowa.
Peter Kyveryga, Iowa Soybean Association; Tracy Blackmer, Iowa Soybean Association
9:45 AM
671-6
Binary Logistic Modeling to Spatially Predict the Probability of Soil Fertilizer Application Classes.
Adel M. Elprince, Alexandria University; Magda A. Hussien, Alexandria University
10:00 AM
Break
10:15 AM
671-7
Best Management Practices of Tillage and N Fertilization of Winter Cereals in Mediterranean Semiarid Rainfed Conditions.
C. Cantero-Martínez, University of Lleida; J. Margalef, University of Lleida; F.J. Morell, University of Lleida; P. Angás, University of Lleida; J. Álvaro-Fuentes, University of Lleida
10:30 AM
671-8
Soil Nitrogen Conservation with Continuous No-Till Management of Grain Cropping Systems in the Virginia Coastal Plain.
John Spargo, Virginia Tech; Marcus Alley, Virginia Tech; Ronald Follett, USDA-ARS; James Wallace, Colonial Soil & Water Conservation District
10:45 AM
671-9
Better Recommendation Systems for Nitrogen Fertilization of Corn.
Matias Ruffo, University of Illinois at Urbana-Champaign; Matt Wiebers, Mosaic Crop Nutrition; Fred E. Below, University of Illinois-Urbana-Champaign
11:00 AM
671-10
Evaluation of the Yield Potential Based Nitrogen Fertilization Optimization Algorithm in Cotton.
Brian D. Arnall, Oklahoma State University; Daniel E. Edmonds, Oklahoma State University; M.C. Daft, Oklahoma State University; B.B. England, Oklahoma State University; Randal Taylor, Oklahoma State University; W.R. Raun, Oklahoma State University
11:15 AM
671-11
Hungry Soils, Hungry People: Soil Management for Sustained Agricultural Production in Sub-Saharan Africa.
Samuel G.K. Adiku, University of Florida; James W. Jones, University of Florida
11:30 AM
Adjourn
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