The common nitrogen fixer in paddy fields is . . . . . . .

  • A
    Rhizobium
  • B
    Azospirillum
  • C
    Oscillatoria
  • D
    Frankia

Explore More

Similar Questions

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

Which of the following is common to Azospirillum,Anabaena,Nostoc and Oscillatoria?

Match the following columns:
Column-$I$ Column-$II$
$(a)$ Azospirillum $(1)$ Symbiotic bacteria
$(b)$ Cyanobacteria $(2)$ Free-living bacteria
$(c)$ Rhizobium $(3)$ Mycorrhiza
$(d)$ Glomus $(4)$ Autotrophic microbe

Who is the individual known for his contribution to organic farming,specifically Ramesh Chandra Dagar?

Which one is a green manure or biofertilizer?

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