Grisso, Robert D.Alley, Marcus M.Heatwole, Conrad D.2015-02-122015-02-122005-09-01http://hdl.handle.net/10919/51376By knowing location, farmers can look at the field as a group of small zones and determine if the field is uniform or not. Computers and geographical information systems (GIS) enable producers to record location and other information. With this information practices that may improve efficiency and increase profitability can be considered.8 pagesapplication/pdfenVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.Precision, Geospatial, & Sensor TechnologiesExtension publicationhttp://pubs.ext.vt.edu/442/442-503/442-503_pdf.pdfPrecision agricultureGlobal positioning systemGeographical information systems