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747 Crop Response to Nitrogen Fertilizer

Oral Session
S04 Soil Fertility & Plant Nutrition
This session includes papers dealing with response of crops to nitrogen fertilizer rates.
Wednesday, 8 October 2008: 8:25 AM-11:00 AM
George R. Brown Convention Center, 360F

Presiding:
Michael Russelle
8:25 AM
Introductory Remarks
8:30 AM
747-1
Optimal N Rates for Corn, Millet and Wheat in a No-till Dryland Rotation.
Merle Vigil, USDA-ARS; David Poss, USDA-ARS; David Nielsen, USDA-ARS; Joseph Benjamin, USDA-ARS; Maysoon Mikha, USDA-ARS
8:45 AM
747-2
N Response of ‘Supersoft' White Winter Wheat in NE Oregon.
Steven Petrie, Oregon State Univ.
9:00 AM
747-3
Selecting the “Best” Yield Response Curve – How Much Does It Matter?.
Dan Jaynes, USDA-ARS
9:15 AM
747-4
Nitrogen Fertilization for Ethanol Production with Sweet Sorghum and Corn.
William Stevens, University of Missouri; Roland Holou, University of Missouri; Matthew Rhine, University of Missouri; David Dunn, University of Missouri
9:30 AM
Break
9:45 AM
747-5
Economics of Nitrogen Rate and Application Timing Effects on Wheat.
Stephen Ebelhar, Univ. of Illinois, Urbana-Champaign; Emerson D. Nafziger, Univ. of Illinois; Eric Adee, University of Illinois-Urbana-Champaign; Carl Hart, University of Illinois-Urbana-Champaign; Lyle Paul, Univ. of Illinois, Urbana-Champaign
10:00 AM
747-6
The Impact of Fertilizer Type and Application Method on the Loss of Ammonia (NH3).
Katy Smith, National Soil Dynamics Laboratory; Dexter B. Watts, USDA-ARS; H. Allen Torbert, USDA-ARS; T. Way, USDA-ARS
10:15 AM
747-7
Fine-Tuning the Amount of Nitrogen Fertilizer Applied to Canola (Brassica napus L.) in Western Canada Using Optical Sensors.
Chris B. Holzapfel, Indian Head Agricultural Research Foundation; Guy P. Lafond, Agriculture and Agri-Food Canada; Stewart Brandt, Agriculture Canada Res. Station; Paul Bullock, University of Manitoba; Byron Irvine, Agriculture and Agri-Food Canada; Dean James, AAFC – Semiarid Prairie Agricultural Research Centre; Malcolm Morrison, Agriculture and Agri-Food Canada; William May, Agriculture and Agri-Food Canada
10:30 AM
747-8
Effect of Drip Irrigation and N Application Rates on Biomass Accumulation, Nitrogen Uptake, and Yield of Bell Pepper and Watermelon Crops.
Kamal A. Mahmoud, Soil and Water Science Department; Kelly Morgan, Univ. of Florida; Peter Nkedi-Kizza, Univ. of Florida; Jerry Sartain, Univ. of Florida; Eric H. Simonne, Univ. of Florida
10:45 AM
747-9
Nitrogen and Water Management Effects on Spikelet Sterility of Flooded Rice in Chile.
Rodrigo Ortega, Universidad Técnica Federico Santa MarÃa, Departamento de Industrias; David Del Solar, Universidad Técnica Federico Santa María, Departamento de Industrias; Edmundo Acevedo, CHILE,Univ. of
11:00 AM
Adjourn
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