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

Why are blue-green algae not popular as biofertilisers?

Identify the correct statements regarding mycorrhiza:
$(1)$ Many members of the genus $Glomus$ form mycorrhiza.
$(2)$ It is responsible for all mineral absorption from the soil.
$(3)$ Such associations show benefits against drought and salinity in plants.
$(4)$ Mycorrhiza is a symbiotic association between fungi and roots of higher plants.

By what percentage does crop productivity increase with the use of biofertilizers?

The biofertilizer present in the roots of legumes is

What is the primary function of biofertilizers?

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