Nitrogen Fixing Bacteria – Azospirillum and Azotobacter

Azospirillum and Azotobacter are nitrogen-fixing bacteria that can be used to fertilize crops and soil. These bacteria are a part of the nitrogen cycle and are very important for soil fertility. These bacteria are also helpful in plant growth, such as in the production of tomatoes. Nitrogen-fixing bacteria are microscopic, soil-dwelling bacteria that convert nitrogen gas (N2) into ammonia (NH3) that can be used by plants. Nitrogen is an essential nutrient for plants and is typically applied to the soil in the form of fertilizer. It is a necessary component of amino acids, proteins, and chlorophyll. The presence of nitrogen-fixing bacteria in the soil will increase the availability of nitrogen for plants. Nitrogen is often a limiting factor in plant growth, so this can have a positive effect on crop yield. These bacteria have many benefits to offer and can be used to increase the availability of nitrogen in the soil, which can lead to increased crop yield.

Azotobacter species that fix nitrogen as potential soil organisms that can improve crop nutrition and yield stability. An enzyme called “Nitrogenase” converts atmospheric nitrogen (N2) into ammonium that is easily absorbed by roots in a process known as “Biological Nitrogen Fixation” (BNF).

Through nitrogen fixation and the use of carbon for its metabolic process, bacterial development aids in enhancing plant growth and increasing soil nitrogen levels.