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  1. 1
    Application of nitrogen-fixing systems in soil improvement and management

    Application of nitrogen-fixing systems in soil improvement and management by Hamdi, Y.A

    Published 1982
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  2. 2
    Certain nitrogenous fertilizers (anti-dumping) /

    Certain nitrogenous fertilizers (anti-dumping) /

    Published 1984
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  3. 3
    Crop logging of sugar cane : nitrogen and potassium requirements and interactions using two varieties /

    Crop logging of sugar cane : nitrogen and potassium requirements and interactions using two varieties / by Clements, Harry F.

    Published 1970
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  4. 4
    Denitrification loss of fertilizer nitrogen in paddy soils : its recognition and impact /

    Denitrification loss of fertilizer nitrogen in paddy soils : its recognition and impact / by Watanabe, I.

    Published 1979
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  5. 5
    Effecient use of nitrogen in crop production /

    Effecient use of nitrogen in crop production / by Liu, Ta-chiang

    Published 1991
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  6. 6
    Efficiency of nitrogen fertilization on upland crops grown in multiple cropping systems in Taiwan /

    Efficiency of nitrogen fertilization on upland crops grown in multiple cropping systems in Taiwan / by Lian, S.

    Published 1991
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  7. 7
    Farming, fertilizers and the nitrate problem /

    Farming, fertilizers and the nitrate problem / by Addiscott, T. M.

    Published 1991
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  8. 8
    Fertilizer nitrogen : its chemistry and technology /

    Fertilizer nitrogen : its chemistry and technology / by Sauchelli, Vincent

    Published 1964
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  9. 9
    Managing nitrogen economies of natural and man made forest ecosystems proceedings of a workshop organized by CSIRO Division of Land Resources Management in collaboration with the Forests Dept. of Western Australia and with the assistance of Alcoa of Australia, Ltd. at Mandurah, W.A., 5-9 October, 1980

    Managing nitrogen economies of natural and man made forest ecosystems proceedings of a workshop organized by CSIRO Division of Land Resources Management in collaboration with the F...

    Published 1981
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  10. 10
    Nitrogen and rice.

    Nitrogen and rice.

    Published 1979
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  11. 11
    Nitrogen and soil organic matter proceedings of a conference organized by the soil scientists of the National Agriculture Advisory Service, October 22nd-23rd 1964

    Nitrogen and soil organic matter proceedings of a conference organized by the soil scientists of the National Agriculture Advisory Service, October 22nd-23rd 1964

    Published 1969
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  12. 12
    Nitrogen fertilization and management in tropical rice /

    Nitrogen fertilization and management in tropical rice / by Sanchez, Pedro A., 1940-

    Published 1972
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  13. 13
    Nitrogen in agricultural soils /

    Nitrogen in agricultural soils /

    Published 1982
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  14. 14
    Nitrogen in crop production proceedings of a symposium held 25-27 May 1982 at Sheffield, Alabama

    Nitrogen in crop production proceedings of a symposium held 25-27 May 1982 at Sheffield, Alabama

    Published 1984
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  15. 15
    Nitrogen management in farming systems in humid and subhumid tropics/

    Nitrogen management in farming systems in humid and subhumid tropics/

    Published 1985
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  16. 16
    Nitrogen management on the farms of southern N.S.W. : an information day /

    Nitrogen management on the farms of southern N.S.W. : an information day /

    Published 1986
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  17. 17
    A numerical simulation model to describe nitrogen movement in the soil with intermittent irrigation

    A numerical simulation model to describe nitrogen movement in the soil with intermittent irrigation by Khan, Muhammad Akram, 1946-

    Published 1981
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  18. 18
    Process technologies for nitrogen fertilizers /

    Process technologies for nitrogen fertilizers /

    Published 1978
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  19. 19
    Recent developments in research on nitrogen fertilizers for rice /

    Recent developments in research on nitrogen fertilizers for rice / by Craswell, E. T.

    Published 1980
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  20. 20
    The role of nitrogen in grassland productivity : a review of information from temperate regions /

    The role of nitrogen in grassland productivity : a review of information from temperate regions / by Whitehead, D. C.

    Published 1970
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