University of Illinois Urbana-Champaign

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Showing 4351–4380 of 14,669 items
Thumbnail for Mass balance of nitrogen and phosphorus in an agricultural watershed : the shallow groundwater component
Mass balance of nitrogen and phosphorus in an agricultural watershed : the shallow groundwater component
Mehnert, Edward; Dey, William S.; Hwang, Hue-Hwa; Keefer, Donald A.; Holm, Thomas R.; Johnson, Thomas M.; Beaumont, Will C.; Wander, Matthew C.F.; Sanford, Robert A.; McDonald, Jennifer M.; Shiffer, Shawn M.

Thumbnail for Farm radio news. 1950
Farm radio news. 1950
Submitter: Howard Ding

Thumbnail for Farm radio news. 1957: Jy-D
Farm radio news. 1957: Jy-D
Submitter: Howard Ding

Thumbnail for Results of scientific soil treatment Part II
Results of scientific soil treatment Part II
Mann, Frank I.; Hopkins, Cyril G.