1. Editorial

   • John V. Stafford

   Editorial Introduction Pages: 137 - 137

2. On-line Sensor Pendulum-Meter for Determination of Plant Mass

   • D. Ehlert
   • V. Hammen
   • R. Adamek

   OriginalPaper Pages: 139 - 148

3. Mapping Infestations of Potato Cyst Nematodes and the Potential for Spatially Varying Application of Nematicides

   • K. Evans
   • R. Webster
   • S. Griffin

   OriginalPaper Pages: 149 - 162

4. Farm and Operator Characteristics Affecting the Awareness and Adoption of Precision Agriculture Technologies in the US

   • Stan G. Daberkow
   • William D. McBride

   OriginalPaper Pages: 163 - 177

5. Comparison of DEM Data Capture and Topographic Wetness Indices

   • Frank Schmidt
   • Andreas Persson

   OriginalPaper Pages: 179 - 192

6. Is the Soil Variability within the Small Fields of Flanders Structured Enough to Allow Precision Agriculture?

   • Marc Van Meirvenne

   OriginalPaper Pages: 193 - 201

7. Modelling Compaction from On-line Measurement of Soil Properties and Sensor Draught

   • Abdul Mounem Mouazen
   • Herman Ramon
   • Josse De Baerdemaeker

   OriginalPaper Pages: 203 - 212

8. A Geostatistical Analysis of the Spatial Variation of Soil Mineral Nitrogen and Potentially Available Nitrogen Within an Arable Field

   • S. J. Baxter
   • M. A. Oliver
   • J. Gaunt

   OriginalPaper Pages: 213 - 226

9. Site-Specific Herbicide Decision Model to Maximize Profit in Winter Wheat

   • Douglas L. Young
   • T. J. Kwon
   • F. L. Young

   OriginalPaper Pages: 227 - 238