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United States Department of Agriculture

Agricultural Research Service


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Image Number D2243-2

ARS soil scientist April Leytem and research leader David Bjorneberg use open-path ultraviolet-differential optical absorption spectrometry to determine ammonia concentrations at dairy operations in southern Idaho.

 

Photo by Peggy Greb.


640 pixels wide: (d2243-2.jpg)




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Last Modified: 8/13/2016
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