Submitted to: Clean Water Clean Environment 21st Century Conference Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 1/5/1995
Publication Date: N/A
Technical Abstract: Many precision farming technologies rely on accurate field maps of soil characteristics or deficiencies. Generation of these maps is often expensive since intensive soil sampling is required. We investigated the use of non-contacting electromagnetic induction (EM) measurements as a mapping aid that could reduce the number of soil samples needed. We demonstrated that EM maps can give higher resolution information than contained in a soil survey map. We then showed how this technique could be used to develop a field map for a specific soil chemical property (the soil-solution partition coefficient for the herbicide atrazine). EM mapping is rapid, inexpensive, and can be easily incorporated into evolving GPS-GIS based differential chemical application technologies.