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ARS Home Office of Communications Images Photos Feb12





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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


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