Spelling suggestions: "subject:"plant nitrogen fixation"" "subject:"slant nitrogen fixation""
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Aspects of nitrogen fixation by white clover (Trifolium repens L.) - symbiotic variation in response to combined nitrogenRys, G. J. January 1982 (has links)
No description available.
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Variation in Frankia strains isolated from Alnus root nodulesHooker, John Edward January 1987 (has links)
No description available.
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