Spelling suggestions: "subject:"fertilizer diminished returns."" "subject:"fertilizer diminish returns.""
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Some methods of estimating fertilizer response functions for refinement of diminishing returns analysisKawakatsu, Shōhei. January 1957 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1957. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 174-180).
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