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- Nitrogen fixation
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- Applied and environmental microbiology, a journal article from 1986 XN-AAX-470-A
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- Nitrogen fixation
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- Comparison of inoculant and indigenous rhizobial dinitrogen fixation in cowpeas by direct nitrogen - 15 analyses, a journal article from 1986 XN-AAX-470-B
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- Nitrogen fixation
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- Increased effectiveness of competitive rhizobia strains upon inoculation of Cajanus cajan, an other usaid supported study/document from 1986 XN-AAX-470-D
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- Nitrogen fixation
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- Annual project report, FY 1986 : project title -- special grants for research on factors limiting symbiotic nitrogen fixation for crop production in developing countries (PASA AG/TAG-610-9-76), an annual report from 1987 PD-AAW-489
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- Nitrogen fixation
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- Final report : competition between rhizobial inoculants and indigenous rhizobia, an other usaid supported study/document from 1987 PN-AAX-470
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- Nitrogen fixation
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- Principles and practice of field designs to evaluate symbiotic nitrogen fixation, an other usaid supported study/document from 1987 PN-AAY-387
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- Nitrogen fixation
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- Influence of root and shoot on N2 fixation in cowpea, a journal article from 1987 PN-ABA-596
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- Analysis of host genotype X rhizobial strain interaction in N2 fixation, a journal article from 1987 PN-ABA-597
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- Nitrogen fixation
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- Report of the review team : special grants for research on factors limiting symbiotic nitrogen fixation for crop production in developing countries, a special evaluation from 1988 XD-ABA-952-A
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