Question

Enlist the types of biofertilizers.

Answer 1

symbiotic nitrogen fixers, Rhizobium spp.;

non-symbiotic, free-living nitrogen fixers (Azotobacter, Azospirillum, etc.);

algal biofertilizers (blue-green algae or blue-green algae in association with Azolla);

phosphate-solubilising bacteria;

mycorrhizae;

organic fertilizers.

Answer 2

i) Free Living Nitrogen Fixing Bacteria

ii) Free Living Nitrogen Fixing Cyanobacteria

iii) Loose Association of Nitrogen Fixing Bacteria
iv) Symbiotic Nitrogen Fixing Bacteria

v) Symbiotic Nitrogen Fixing Cyanobacteria