Question

what are the two types of nitrogen fixation ? define it ​

Answer 1

Explanation:

The two types of nitrogen fixation are: (1) Physical Nitrogen Fixation and (2) Biological Nitrogen Fixation. Apart from carbon, hydrogen and oxygen, nitrogen is the most prevalent essential macro-element in living organisms.

Answer 2

Answer:

The two types of nitrogen fixation are: (1) Physical Nitrogen Fixation and (2) Biological Nitrogen Fixation.

Apart from carbon, hydrogen and oxygen, nitrogen is the most prevalent essential macro-element in living organisms. Plants need nitrogen to build amino acids, proteins, nucleic acids, cytochromes, chlorophylls, alkaloids, phytohormones and many of the vitamins. Plants compete with microbes for limited nitrogen content available in the soil. Plants mainly absorb nitrogen in the form of nitrate (NO3–) or ammonium ions (NH4+) from the soil.