ABSTRACT
Biofertilizers are preparations containing viable forms of beneficial microorganisms intended for seed or soil application. Cyanobacteria are oxygenic photosynthetic bacteria, and some of them are able to fix dinitrogen. They have inhabited much of the surface of the earth for billions of years and today they are responsible for a significant amount of biological nitrogen fixation (BNF). Cyanobacteria’s trophic independence made them suitable for use as biofertilizers. Cyanobacteria are widely distributed organisms all over the world and can be found in extreme habitats, from hot springs to artic regions. Among the ecosystems in which they can be found, wet soils provide an ideal environment for cyanobacteria to grow.
