Session: Symposium--Agronomic and Economic Optimum Fertilizer Rates in An Era of Volatile Fertilizer and Commodity Prices

Tuesday, November 3, 2009: 9:55 AM-12:20 PM

Convention Center, Spirit of Pittsburgh Ballroom BC,Third Floor

Presiding:

Michael Ottman

Organizer:

Michael Ottman

9:55 AM

Introductory Remarks

10:00 AM

World Fertilizer and Supply and Demand Considerations.
Kim Polizotto, Potash Corp. of Saskatchewan

Audio File Recorded presentation

10:25 AM

Scientific Considerations for Allocating Funds to Various Fertilizer Nutrients.
T. Scott Murrell, Intl. Plant Nutrition Inst.

Audio File Recorded presentation

10:50 AM

Reducing Uncertainty and Effects of Fertilizer and Commodity Prices On Estimates of Economic Optimum Rates.
Thomas Morris, Univ. of Connecticut; Peter Kyveryga, Iowa Soybean Assoc.; Alfred M. Blackmer, Iowa State Univ.; Tracy Blackmer, Iowa Soybean Assoc.

Audio File Recorded presentation

11:10 AM

Identification of Nitrogen Management Categories to Reduce Uncertainty in Estimates of Economic Optimum Rates.
Peter Kyveryga, Iowa Soybean Assoc.; Haiying Tao, Univ. of Connecticut; Thomas Morris, Univ. of Connecticut; Tracy Blackmer, Iowa Soybean Assoc.

Audio File Recorded presentation

11:30 AM

Fertilizing Based On Soil Testing and Sensor Technology.
Hailin Zhang, Oklahoma State Univ.; David Nofziger, Oklahoma State Univ.; Bill Raun, Oklahoma State Univ.; Brian Arnall, Oklahoma State Univ.

Audio File Recorded presentation

11:50 AM

Modifying Yield-Goal Based N and P Fertilizer Recommendations to Varying Input and Output Prices.
Kevin Dhuyvetter, Kansas State Univ.; Terry Kastens, Kansas State Univ.; Dorivar Ruiz Diaz, Kansas State Univ.

Audio File Recorded presentation

12:10 PM

Concluding Remarks

12:20 PM

Adjourn

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