The nitrogen-fixing microorganism associated with $Azolla$ in rice fields is .......

  • A
    Frankia
  • B
    Tolypothrix
  • C
    Spirulina
  • D
    Anabaena

Explore More

Similar Questions

Biofertilizers include:

Modern farmers have been able to increase rice production by about $50\%$ by using which of the following?

$VAM$ is

How do blue-green algae increase the fertility of the soil?

Anabaena has an immense potential as a:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo