Which one of the following is not used in organic farming?

  • A

    Snail

  • B

    Glomus

  • C

    Earthworms

  • D

    Oscillatoria

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Definitions / Explanation : Biofertiliser

Most famous nitrogen fixing bacterium/biofertilizer is

Biofertilisers include

Agricultural chemicals include

Which is correct

  • [AIPMT 1994]