$A$ farmer has applied chemical fertilisers in his crop field for many successive seasons. In the next season,the crop growth was poor as the soil lost its fertility. Suggest the suitable micro-organisms that replenish the fertility of the soil in his field.

  • A
    Spirulina
  • B
    Nostoc
  • C
    Chlorella
  • D
    Spirogyra

Explore More

Similar Questions

The main sources of biofertilisers are

Biofertilizers include:

Which of the following is an example of a biofertilizer?

How much does crop productivity increase with the use of biofertilizers?

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

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