Azotobacter (Bio Fertilizers)-IS:9138

IS:9138 is an Indian Standards (IS) code for Azotobacter
biofertilizer formulations, which specify the requirements for
these organic products to ensure they are effective, safe, and
meet quality standards. While specific details of the IS:9138
standard itself are not provided in the search results, it
outlines the specifications for Azotobacter biofertilizers, a
free-living bacteria that fixes atmospheric nitrogen,
promoting plant growth, increasing crop yields, and
improving soil health by producing growth-promoting
substances and enhancing nutrient availability