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NEET2003BotanyMineral NutritionActual

Azolla is used as a biofertilizer because it

Options

  1. Amultiplies very fast to produce massive biomass
  2. Bhas association of nitrogen - fixing Rhizobium
  3. Chas association of nitrogen - fixing cyan obacteria
  4. Dhas association of mycorrhiza.

Correct answer

C. has association of nitrogen - fixing cyan obacteria

Step-by-step solution

Azolla is a pteridophyte and used as a biofertilizer because it has association with nitrogenfixing cyanobacteria Anabaena azollae.

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