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  1. 1

    Optimum size in objective yield estimation [microform] door Flores, Quintin G.

    Gepubliceerd in 1974
    Visual Material

    Optimum size in objective yield estimation [microform]
  2. 2

    Rice fertilization a six-year isotope study on nitrogen and phosphorus fertilizer utilization door International Atomic Energy Agency

    Gepubliceerd in 1970
    Boek

    Rice fertilization a six-year isotope study on nitrogen and phosphorus fertilizer utilization
  3. 3

    The Masagana/Margate system of planting rice: a study of an agricultural innovation door Covar, Prospero R

    Gepubliceerd in 1960
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    The Masagana/Margate system of planting rice: a study of an agricultural innovation

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