Rhizobium bacteria present in the root nodule of leguminous plant can directly fix atmospheric nitrogen and increase in the fertility of the soil
The addition of blue-green algae to barren fields increases the fertility of the soil. Regards
What is meant by ' nitrogen fixation' ? State two ways in which nitrogen gas of the atmosphere can be 'fixed' in nature to get nitrogen compounds is the soil.
Name the microorganisms which can fix atmospheric nitrogen in the soil.
What type of plants can fix nitrogen gas of the air into compounds of nitrogen ?