1. Editorial

   • Pierre Robert

   Editorial Board Pages: 5 - 5

2. Mapping Grain Sorghum Yield Variability Using Airborne Digital Videography

   • Chenghai Yang
   • Gerald L. Anderson

   OriginalPaper Pages: 7 - 23

3. Method for Precision Nitrogen Management in Spring Wheat: II. Implementation

   • Dan S. Long
   • Richard E. Engel
   • Gregg R. Carlson

   OriginalPaper Pages: 25 - 38

4. Managing Uncertainty in Site-Specific Management: What is the Best Model?

   • Matthew L. Adams
   • Simon Cook
   • Robert Corner

   OriginalPaper Pages: 39 - 54

5. Economics of Variable Rate Lime in Indiana

   • R. Bongiovanni
   • J. Lowenberg-Deboer

   OriginalPaper Pages: 55 - 70

6. From Agronomic Research to Farm Management Guidelines: A Primer on the Economics of Information and Precision Technology

   • David S. Bullock
   • Donald G. Bullock

   OriginalPaper Pages: 71 - 101