title: Further research on Azotobacter paspali and its variety specific occurrence in the rhizosphere of Paspalum notatum Flugge.
mesh_terms: D000362:Agar; D001395:Azotobacter / Q000254:growth & development / Q000302:isolation & purification*; D001431:Bacteriological Techniques; D001938:Brazil; D002951:Citrates; D005782:Gels; D009586:Nitrogen Fixation; D006109:Poaceae; D012822:Silicon Dioxide; D012988:Soil Microbiology; D013045:Species Specificity
chemical_list: D002951:Citrates; D005782:Gels; D012822:Silicon Dioxide; D000362:Agar