Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?
Aspergillus and Rhizopus
Rhizobium and Rhizopus
Cyanobacteria and Rhizobium
Aspergillus and Cyanobacteria
Biofertilizers include
Give scientific reasons : The pressure on use of organic farming and biotic fertiliser has been increased.
Which of the following is common to Azospirillum, Anabaena, Nostoc and Oscillatoria
Farmers have reported $50\%$ higher yield of rice by using biofertilizer