Azotobacter sp. and Azospirillum sp. are non symbiotic nitrogen fixers, they are able to fix atmospheric nitrogen and makes them available to the plant system. Apart from its ability to fix atmospheric nitrogen, Azotobacter is also known to sysntheisis biologically active plant growth promoting substances such as indole-acetic acid (IAA), gibberellins and B- vitamines. Moreover phosphate solubilizing bacteria (PSB) solubilize plant nutrients like phosphates and render them available to crops and improves yields upto 25% . SAMSON AZ-PHOS is beneficial to all agricultural crops. It can be applied to vegetables, Orchards, cereals, oil seeds,horticultural crops, Tea, Flowers,medicinal plants etc.