Manufacture of Azotobacter chroococcum,Bacillus megaterium Compound Bacterial Fertilizer and Its Application

[Objective]The research aimed to study the effect of compound bacterial fertilizer.[Method]The cultures of Azotobacter chroococcum and Bacillus megaterium were mixed into 2.4×109/ml inoculants which were diluted into 3×108,6×108,9×108,1.2×109/ml respectively.Compared with the clean water,their effec on the corn growth were contrasted.At the same time,the single inoculuted becterium culture of Azotobacter chroococcum and Bacillus megaterium which were all 3×108/ml were made the promote effect on corn were compared with the mixed cultures.[Result]The promotion of effecs of mixed cultures were obrious than those of the two single cultures.Among the four mixed cultures,9×108/ml mixed culture had the most obvious promotion effection,that is,the corn grew high and had dry weight of root.[Conclusion]The application of compound bacterial fertilizer could provide the basis for further high and stable yield of crops.