The organisms which are used to enrich the nutrient quality of the soil are called
Bacteria
Cyanobacteria
Fungi
All of these
The nitrogen fixing symbiotic organism present in Azolla is
Farmers have reported over $50\%$ higher yields of rice by using which of the following biofertilizer
Symbiotic nitrogen fixation in root nodules of some legumes is caused by
Which one of the following is not a biofertilizer?
Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?