The chemical fertilizer required for better rhizobial nitrogen fixation is

  • A
    Phosphorus
  • B
    Potassium
  • C
    Calcium
  • D
    Sodium

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Which mineral element plays an important role in biological nitrogen fixation?

Which one of the following elements plays an important role in biological nitrogen fixation?

Identify the non-leguminous plants that form nodules to fix nitrogen.

The nitrogenase enzyme found in the root nodules of legumes contains:

Which of the following is a free-living nitrogen-fixing bacterium?

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