[Distribution of Azotobacter in soils of Bulgaria].
D001203:Ascomycota; D001395:Azotobacter; D001432:Bacteriology; D002031:Bulgaria; D012987:Soil; D012988:Soil Microbiology
D012987:Soil
AZOTOBACTER; SOIL/bacteriology
Rasprostrane nie azotobaktera v pochvakh Bolgarii.