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  1. 1

    Bio-intensive gardening.

    Electronic Resource
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    Organikong paghahalaman by Dagoon, Jesse D.

    Published 1993
    Book
  5. 5

    Biofertilizer germplasm collections at IRRI

    Published 1992
    Book
  6. 6

    A primer on organic based rice farming by Pandey, R.K

    Published 1991
    Book
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  10. 10

    Integrated nutrient management

    Published 2005
    Book