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
Root nodules for nitrogen fixation of a non-leguminous tree possess
Farmers have reported over $50\%$ higher yields of rice by using which of the following biofertilizer
Azolla possesses symbiotic association with
Azotobacter and Bacillus polymyxa are
Azolla enriches rice fields with nitrogen due to its association with