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  1. 21
    由 Dela Cruz, Roderick T.
    發表在 Manila Times (2004)
    Article

    Use of microbial fertilizer eyed for 192,000-hectare corn area
  2. 22
    由 Esconde, Ernie S.
    發表在 Manila Times (2003)
    Article

    Rice farmers hit soaring fertilizer prices in Bataan
  3. 23
    發表在 Manila Bulletin (2003)
    Article

    Filipino inventor unveils new fertilizer
  4. 24
    由 Chipongian, Lee
    發表在 Manila Times (2002)
    Article

    Importation of fertilizer Thailand approved
  5. 25
    發表在 Kabayan (1999)
    Article

    P52M para sa industriya ng pataba
  6. 26
    發表在 Today (1998)
    Article

    Earthworms produce ideal fertilizer
  7. 27
    發表在 Philippine Daily Inquirer (1997)
    Article

    Leaf color chart measures fertilizer use
  8. 28
    Article

    Young inventors turn wastes into fertilizer
  9. 29
    發表在 Manila Times (1997)
    Article

    Natural fertilizers help farmers preserve farms
  10. 30
    由 Icamina, Paul
    發表在 Manila Times (1997)
    Article

    Fertilizer mix works like magic
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