Question

Explain the role played by rhizobium bacteria in increasing the fertility of soil.

Answer 1

Answer:

Explanation:

In a symbiotic relationship with the soil bacteria known as 'rhizobia', legumes form nodules on their roots (or stems, see figure below) to 'fix' nitrogen into a form usable by plants (and animals). ... Because legumes form nodules with rhizobia, they have high levels of nitrogen available to them.

Answer 2

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