Effect of Inoculation with Nitrogen-Fixing Blue-Green Algae on the Population of Total Bacteria, Azotobacter and Phosphate Solubilizing Bacteria in Partial Sterilized Waterlogged Rice Soil

The effect of inoculation with a mixed culture of two nitrogen fixing blue-green algae, Aulosira fertilissima and Nostoc muscorum on the growth and proliferation of total viable bacteria, Azotobacter and phosphate solubilizing bacteria were investigated in a partial sterilized alluvial waterlogged rice soil. The inoculation harboured increasing number of total viable bacteria, Azotobacter and phosphate solubilizing bacteria particularly during the growing period of inoculated algae. This was more pronounced when phosphate and molybdate were added to the soil both in presence or absence of rice plant