Effect of Azotobacter Vinelandii Strain SRIAz3 and N-source on Microbiological Properties of Rice Grown Soil

Rice is the staple food for 60 percent of Indians and source of livelihood for 120-150 million rural households. India is the largest producer of rice being cultivated in 43.95 Mha area with a production of 106.35 Mt and productivity of 2.42t ha1 (Agricultural Statistics at a Glance, 2014). In Odisha, rice is cultivated in 4.18 Mha area with production of 7.61 Mt and productivity of 1.82 t ha -1