Which one is a nonsymbiotic nitrogen fixer
Rhizobium
Oscillatoria
Nostoc
Lactobacillus
How are microbes useful in biofertilisers ?
Which of the following cyanobacteria can fix atmospheric nitrogen?
$I.$ Anabaena
$II.$ Oscillatoria
$III.$ Nostoc
Choose the correct option
What are biofertilizers ? Give two examples.
Which disease is caused in children due to excessive use of nitrate fertilizers
The common nitrogenfixer in paddy fields is