Ans: Mass multiplication of azotobacter is a process where they are artificially inoculated. The process entailed transferring the azotobacter inoculants to a sterile flask and incubating them on a rotary shaker for a few days at 30 degrees centigrade. The broth acts as the initial culture that can be utilized for the mass multiplication or production of the azotobacter inoculants. It is when the density of the inoculums becomes 10; the inoculants should be prepared. The broth is then mixed with a carrier, and the curing is done for a week in such a way that 40 percent of the moisture is maintained. Suitable carrier materials are materials followed by sterilization by autoclaving. After that, the carrier-based inoculants are packed in polythene bags and sent to the market.