What is the importance of nitrogen fixing bacteria in agriculture?

Explanation

**Step-by-Step Solution:**

1. **Understanding Nitrogen Fixing Bacteria**: Nitrogen-fixing bacteria are microorganisms that have the ability to convert atmospheric nitrogen (N₂) into ammonia (NH₃), which is a form that plants can utilize for growth.

2. **Role of Nitrogen in Plants**: Nitrogen is an essential nutrient for plants. It is a key component of amino acids, proteins, and nucleic acids, which are vital for plant growth and development.

3. **Examples of Nitrogen Fixing Bacteria**: One of the most well-known nitrogen-fixing bacteria is *Rhizobium*, which forms symbiotic relationships with leguminous plants such as gram and pea. These bacteria reside in root nodules of these plants.

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