A U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) employee examines the control box of a center pivot irrigation system on a Delaware farm on July 8, 2008.
As part of the Conservation Effects Assessment Project (CEAP) study of the Chesapeake Bay region by the USDA NRCS some farmers use a center pivot irrigation system. Center pivot irrigation is a method of crop irrigation in which equipment rotates around a pivot. This center pivot irrigation system is using Low Elevation Spray Application (LESA) system, which uses less water and reduces evaporation. USDA photo by Alice Welch.. Original public domain image from Flickr