5 resultados para biological nitrogen fixation
em University of Michigan
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Mode of access: Internet.
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Mode of access: Internet.
Nitrogen fixation in alfalfa : responses to bidirectional selection for associated characteristics /
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"Issued December 1981"--2d prelim. page.
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Mode of access: Internet.
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In v. 37 of a series of botanical tracts collected and bound together by Rev. Julius A. Nieuwland, University of Notre Dame.