Page Banner

United States Department of Agriculture

Agricultural Research Service

Image Number D2415-1

Download a high-resolution (300dpi) digital image here.

Image Number D2415-1

ARS researchers are studying how nitrates and phosphorus affect water quality in a crop field that has been converted to native prairie vegetation at the Neal Smith National Wildlife Refuge near Prairie City, Iowa.


Photo by Jeff Cook.

640 pixels wide: (d2415-1.jpg)

Please visit our Image Gallery
Last Modified: 1/31/2012
Footer Content Back to Top of Page