Question

what is Rhizobium??? ​

Answer 1

Rhizobium is a genus of Gram-negative soil bacteria that fix nitrogen. Rhizobium species form an endosymbiotic nitrogen-fixing association with roots of legumes and other flowering plants.

Answer 2

Answer:

Rhizobium is a bacterium which converts gaseous nitrogen into usable and soluble for the plants in the soil in which the plant absorb it from their roots.