Some blue green algae can be used as biofertilizer as they are</h2></div>

Which of the following is formed during the process of anaerobic fermentation?</h2></div>

In secondary treatment, solid reducers, ranges from<span><br> </span></h2></div>

Which of the following is the pair of biofertilisers?</h2></div>

Which of the following is widely used as a successful biofertiliser in Indian rice fields?</h2></div>

Waste water treatment generates a large amount of sludge, which can be treated by</h2></div>

IRRI proposed which one of the following for the prevention of fertilizers pollution in agriculture?</h2>…

Bt toxin kills insect by</h2></div>