Rhizosphere is the region where
Rhizobium forms root nodules
Algae and root make contact
Soil and root make contact
Bacterial and root nearly make contact
Some blue green algae can be used as biofertilizer as they are
Symbiotic nitrogen fixation in root nodules of some legumes is caused by
Which one of the following is not a biofertilizer?
An example of endomycorrhiza is
Leghaemoglobin occurs in