Which of the following is non-symbiotic biofertilizer
$VAM$
Azotobacter
Anabaena
Rhizobium
Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?
Azolla is used as a biofertiliser because it
Azolla possesses symbiotic association with
Which one is a nonsymbiotic nitrogen fixer