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  1. 1
    Nitrogen leaching in ecological agriculture : proceedings of an International Workshop, Royal Veterinary and Agricultural University, Copenhagen, Denmark /
    Book
    Published 1995
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  2. 2
    The soil nitrogen index and its calibration with crop performance to improve fertilizer efficiency on arable soils /
    Book
    by Robinson, J. B. D.
    Published 1975
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  3. 3
    High nitrogen steels /
    Conference Proceeding Book
    Published 1989
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  4. 4
    Nutrient monitoring of Sunraysia irrigation drains, October 1989 to May 1990 /
    Book
    by Schalken, A. J.
    Published 1990
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  5. 5
    Diffuse source nutrient generation rates in the Hawkesbury-Nepean Basin /
    Book
    by Marston, Frances
    Published 1993
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  6. 6
    Modelling nitrogen from farm wastes : models and systems for studying the transformation and fate of nitrogen from animal effluents applied to soils /
    Book
    Published 1979
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  7. 7
    Simulation of nitrogen behaviour in soils /
    Book
    by Beek, J.
    Published 1973
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  8. 8
    Effect of climate and cultivation on nitrogen and organic matter reserves in Indian soils /
    Book
    by Jenny, Hans, 1899-1992
    Published 1960
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  9. 9
    A study of gains and losses of soil nitrogen in Western Australian wheat belt soils /
    Thesis Book
    by Barrett-Lennard, I. P.
    Published 1953
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  10. 10
    Symposium on Nitrogen : held at Cunningham Laboratory, Brisbane, February, 1960.
    Conference Proceeding Book
    Published 1960
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