Page Banner

United States Department of Agriculture

Agricultural Research Service

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

Image Number D2402-1

Subsurface drainage water from individual field plots is routed to this sump where flow is measured and samples are prepared for nitrate testing. Here, soil microbiologist Tom Moorman takes a water sample for nitrate analysis.


Photo by Peggy Greb.

640 pixels wide: (d2402-1.jpg)

Please visit our Image Gallery

Last Modified: 8/13/2016
Footer Content Back to Top of Page