Nitrogen is fixed through

Which of the following association fix nitrogen through non-nodulation?

Which of the following association fix nitrogen through non-nodulation?

Assertion : Atmospheric nitrogen is always fixed by nitrogen-fixing micro organisms. Reason : They convert ammonia present in atmosphere to nitrites and nitrates.

Which of the following associations fixes nitrogen through non- nodulation?

Assertion. Farmers grow a leguminous crop and plough it back in the field Reason. Leguminous plant fix atmospheric nitrogen through a symbiotic nitrogen fixing bactria-Rhizobium.

Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statements is not correct for this process of nitrogen fixation ?

Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statements is not correct for this process of nitrogen fixation ?