Purdue University | Indiana CCA

Proceedings 2008

Indiana Certified Crop Adviser Conference


Enhanced Efficiency Fertilizers and Review of Stabilized Nitrogen Technology

High fertilizer prices coupled with low commodity prices have producers searching for ways to improve fertilizer uptake efficiency.  Products are available for both nitrogen and phosphorus that claim to reduce nutrient loss to the environment or reduce soil fixation.  This presentation will help you understand the mechanism of the soil processes involved before making a decision to use them.  Research data will be presented that shows when these products are most useful.


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Greg Schwab Extension Soil Management Specialist
University of Kentucky

Dr. Schwab grew up on an integrated hog and row-crop farm in southwestern Ohio. He received a B.S. in Agriculture from Berea College, M.S. in Agronomy from Auburn, and a Ph.D. in Agronomy from Kansas State University. While at Kansas State Univ., Greg was the soil testing laboratory manager, and then for two years was an Extension Soil Fertility Specialist at Washington State University working in the Palouse region of eastern WA. In 2002, he started in his current position at the University of Kentucky an Extension Soil Management Specialist. His research interests include evaluation of new fertilizer products, soil management and fertility interactions, and precision fertilizer management.