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The geographic distribution of Azotobacter and Rhizobium meliloti in Nebraska soils in relation to certain environmental factors
Subject Area
Agronomy|Microbiology
Recommended Citation
Peterson, Howard B, "The geographic distribution of Azotobacter and Rhizobium meliloti in Nebraska soils in relation to certain environmental factors" (1940). ETD collection for University of Nebraska-Lincoln. AAIDP13631.
https://digitalcommons.unl.edu/dissertations/AAIDP13631
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