Question

Blue green algae are mainly used as biofertilizers in the field of which crop?

• A. Wheat
• B. Gram
• C. Paddy
• D. Maize

Answer 1

The correct option is C Paddy

Biofertilizers add nutrients through the natural processes of nitrogen fixation, solubilizing phosphorus, and stimulating plant growth through the synthesis of growth-promoting substances. Blue-green algae such asNostoc or Anabaena or Tolypothrix or Aulosira, fix atmospheric nitrogen and are used as inoculations for paddy crop grown both under upland and lowland conditions.

So, the correct answer is option C.