Showing 1 - 20 results of 112 for search '"nitrogen"', query time: 0.02s Refine Results
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    by Astie, Melvin J.
    Published 1961
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    by P.J. Bottomley et al..
    Published 1985
    TEXT
  6. 6
    by Jnaet I.Sprent
    Published 1979
    TEXT
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  11. 11
    by Rup Lal
    Published
    TEXT
  12. 12
    by Rup Lal
    Published
    TEXT
  13. 13
    Published 1984
    Subjects: ...Biological Nitrogen,...
    TEXT
  14. 14
    by R.F. Follett.
    Published 1989
    TEXT
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  20. 20
    by Meyer, J.H
    Published 1994
    TEXT