1. Editorial

   • John V. Stafford

   Editorial Introduction Pages: 229 - 229

2. Site-Specific Relationship Between Grain Quality and Yield

   • P. Reyns
   • P. Spaepen
   • J. De Baerdemaeker

   OriginalPaper Pages: 231 - 246

3. Two-Year Weed Seedling Population Responses to a Post-Emergent Method of Site-Specific Weed Management

   • Martin M. Williams II
   • Roland Gerhards
   • David A. Mortensen

   OriginalPaper Pages: 247 - 263

4. The “Null Hypothesis” of Precision Agriculture Management

   • B. M. Whelan
   • A. B. McBratney

   OriginalPaper Pages: 265 - 279

5. Guidance of a Forage Harvester with GPS

   • Albert Stoll
   • Heinz Dieter Kutzbach

   OriginalPaper Pages: 281 - 291

6. A Weighing System for Grab Loaders for Sugar Cane Yield Mapping

   • A. M. Saraiva
   • A. R. Hirakawa
   • S. J. Hassuani

   OriginalPaper Pages: 293 - 309