Azolla is used as a biofertilizer because it

  • A
    Multiplies very fast to produce massive biomass
  • B
    Has association of nitrogen-fixing Rhizobium
  • C
    Has association of nitrogen-fixing cyanobacteria
  • D
    Has association of mycorrhiza

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Similar Questions

Biofertilizers include:

Organic farming includes:
$I.$ Use of biofertilisers and biopesticides
$II.$ Crop rotation
$III.$ Locally developed pest-resistant varieties
Choose the correct option.

Which of the following pairs acts as a biofertilizer?

Which of the following microorganisms forms a symbiotic association with plants and helps in their nutrition?

Which of the following is a fertilizer?

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