Q163 / 180 · AIIMS 2018 (27 May) · Zoology

Which of the following can be used as biofertiliser in cotton field?

  • A
    Azolla-Anabaena
  • B
    Streptococcus
  • C
    Azospirillum
  • Correct answer
    D
    Azotobacter chroococcum

Solution

Cotton is a dicotyledonous crop. The best biofertiliser for cotton is Bacillus subtilis and Azotobacter chroococcum. These are free living nitrogen fixing bacteria and enhance the fertility of soil.

Hence, the correct answer is option: 'D'.

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