Precision Pays

Midwest Independent Soil Samplers – Tom McGraw’s newsletters are a MUST READ (knowledge+wisdom+entertainment=excellence in my book)

Sensing Nitrogen Stress in Corn - 2006

Corn Response to Supplemental Nitrogen - 2007

Corn Nitrogen Rate Calculator (Iowa, Illinois, Minnesota, Wisconsin)

Concepts and Rationale for Regional Nitrogen Rate Guidelines for Corn – 2006

USDA Geospatial Data Gateway Find maps of your fields. (You will need GIS software to view them.)

"Next up Robots" – Farm Industry News, March 2007