1. Spatial Variability of Soil Properties, Corn Quality and Yield in Two Illinois, USA Fields: Implications for Precision Corn Management

   • Y. Miao
   • D. J. Mulla
   • P. C. Robert

   OriginalPaper Pages: 5 - 20

   

2. Automated Crop and Weed Monitoring in Widely Spaced Cereals

   • T. Hague
   • N. D. Tillett
   • H. Wheeler

   OriginalPaper Pages: 21 - 32

   

3. Comparison of QuickBird Satellite Imagery and Airborne Imagery for Mapping Grain Sorghum Yield Patterns

   • Chenghai Yang
   • James H. Everitt
   • Joe M. Bradford

   OriginalPaper Pages: 33 - 44

   

4. Nutrient Management Zones for Citrus Based on Variation in Soil Properties and Tree Performance

   • Qamar-uz-Zaman
   • Arnold W. Schumann

   OriginalPaper Pages: 45 - 63