Monday, November 5, 2007: 12:55 PM
Convention Center, Room 223, Second Floor
101: Active Sensors for Nutrient Management (includes Graduate Student Competition)
Sponsor:S04 Soil Fertility & Plant Nutrition
Presiding:William R. Raun, Oklahoma State University
12:55 PM Introductory Remarks
1:00 PM101-1Use of Active Spectroradiometers to Assess to In-season Nitrogen Fertilizer Requirements for Cotton.
Kevin F. Bronson, Texas A&M University - Texas AgriLife Research, Randal Taylor, Oklahoma State University, William Raun, Oklahoma State University, Edward Barnes, Cotton Incorporated, Toby S. Osborne, Oklahoma State University - Plant & Soil Sciences Dept, Adinarayana Reddy Malapati, Texas Agric. Exp. Stn, Peter Scharf, University of Missouri, J.C. Banks, Oklahoma State University, Jason Nusz, Texas Tech University
1:15 PM101-2Evaluation of Delayed Ramp Calibration Strip Application for Mid-Season N Recommendation in Winter Wheat.
Brian D. Arnall, Oklahoma State University, B.S. Tubana, Oklahoma State University, K. Girma, Oklahoma State University, S.L. Holtz, Oklahoma State University, B. Chung, Oklahoma State University, C.R. Dotson, Oklahoma State University, P.L. Turner, Oklahoma State University, Daniel E. Edmonds, Oklahoma State University, B.B. England, Oklahoma State University, M.C. Daft, Oklahoma State University, William Raun, Oklahoma State University, Randal Taylor, Oklahoma State University
1:30 PM101-3Optical Sensor Based Corn Algorithm Evaluation.
Robert Mullen, Ohio State University - OARDC, Newell Kitchen, USDA-ARS, William Raun, Oklahoma State University, James Schepers, USDA-ARS, Wade Thomason, Virginia Tech, Steven Phillips, Virginia Tech, David Mengel, Kansas State University
1:45 PM101-4Active Crop Canopy Sensor Optimal Spatial Scale for in-Season Variable-Rate Nitrogen Application in Corn.
Darrin Roberts, University of Nebraska-Lincoln, Richard Ferguson, University of Nebraska-Lincoln, John Shanahan, USDA-ARS, James Schepers, USDA-ARS
2:00 PM Break
2:15 PM101-5Evaluation of Three Ground Based Active Remote Sensors to Assess Nitrogen (N) Status of Corn across Production Level Management Zones and Environments.
Timothy Shaver, Colorado State University, Dwayne Westfall, Colorado State University, Raj Khosla, Colorado State University
2:30 PM101-6Extension and Analysis of the Ramp Calibration Strip Fertilization Strategy.
D.E. Edmonds, Oklahoma State University, Brian D. Arnall, Oklahoma State University, B. Chung, Oklahoma State University, M.C. Daft, Oklahoma State University, Kefyalew Desta, Oklahoma State University, C.R. Dotson, Oklahoma State University, B.B. England, Oklahoma State University, S.L. Holtz, Oklahoma State University, Clinton Mack, Oklahoma State University, William Raun, Oklahoma State University, John B. Solie, Oklahoma State University, Randal Taylor, Oklahoma State University, B.S. Tubana, Oklahoma State University, P.L. Turner, Oklahoma State University, O.S. Walsh, Oklahoma State University, D.L. Zavodny, Oklahoma State University
2:45 PM101-7Corn (Zea mays L.) Grain Yield Response to By-Plant Nitrogen Fertilization.
B.S. Tubaņa, Louisiana State University, D.B. Arnall, Oklahoma State University, K.W. Freeman, Monsanto Co., R.K. Teal, University of Georgia, B. Chung, Oklahoma State University, O. Walsh, Oklahoma State University, D.E. Edmonds, Oklahoma State University, S. Holtz, Oklahoma State University, P. Turner, Oklahoma State University, C.R. Dotson, Oklahoma State University, B. England, Oklahoma State University, M.C. Daft, Oklahoma State University, K. Girma, Oklahoma State University, W.R. Raun, Oklahoma State University
3:00 PM101-8Real-time sensor-guided sidedressing of corn: Three years of on-farm testing.
Peter C. Scharf, University of Missouri, Newell R. Kitchen, USDA-ARS, Ken Sudduth, USDA-ARS, Harlan Palm, University of Missouri, Kent Shannon, University of Missouri
3:15 PM Adjourn

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