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  1. 1

    World and regional supply and demand balances for nitrogen, phosphate, and potash, 1992/99-1998

    Published 1994
    Book


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  2. 2

    The role of fertilizer subsidies in agricultural production a review of select issues. by Quibria, M.G

    Published 1987
    Book


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  3. 3

    World and regional supply and demand balances for nitrogen, phosphate, and potash, 1991/92-1997

    Published 1993
    Book


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  4. 4

    Yield and fertilizer study on Creeping Sitao and Australian Bush Sitao by Camingao, Saturnino Jr. C.

    Published 1974
    Continuing Resource


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  5. 5

    State of the art non-metallic minerals fertilizer research.

    Published 1986
    Book


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