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ARS Home Office of Communications Images Photos Feb99





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Image Number K8334-1 As part of long-term experiments to learn the effects of different land-use sytems on crops and soils, chemist Chris Roager extracts nitrogen from soil samples taken from test plots at Pendleton, Oregon. Photo by Scott Bauer.  640 pixels wide: (k8334-1.jpg)   Please visit our Image Gallery


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