A nitrogen fixing bacterium that forms a loose assocation with the roots of crop plants is
Azotobacter
Bacillus polymyxa
Clostridium
Azospirillum
Which one of the following is not a biofertiliser?
Which of the following are the part or example of symbiotic mutualistic association?
$I.$ Yeast
$II.$ Rhizobium
$III.$ Mycorrhiza
$IV.$ Oscillatoria
If wheat field is inoculated with Rhizobium
Biofertilizers include