Question

Why do plants require nitrogen? what form do plants take nitrogen?​

Answer 1

Answer:

Nitrogen in Plants

Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins.

Answer 2

Nitrogen is basic component of proteins and protein is required by plants for growth repair regeneration purposes

main source of protein to plants are atmospheric nitrogen which is fixed by nitrobacter present in their roots
or
other sources of nitrogen include dead and decaying organisms remains et cetera