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8. Effect of ruthenium on nitrogen fixation by some nitrogen fixers. Bahadur K, Gaur N. Zentralbl Bakteriol Naturwiss; 1979; 134(7):594-9. PubMed ID: 44933 [Abstract] [Full Text] [Related]
17. Availability of soil ammoniacal nitrogen to Azotobacter and its effect on nitrogen fixation. Abd-el-Malek Y, Hosny I, Shawky BT. Zentralbl Bakteriol Parasitenkd Infektionskr Hyg; 1975; 130(6):584-97. PubMed ID: 1243715 [No Abstract] [Full Text] [Related]