[Productivity of nitrogen fixation by Azotobacter in Siberian soils].
D001395:Azotobacter; D001432:Bacteriology; D009586:Nitrogen Fixation; D012987:Soil; D012988:Soil Microbiology
D012987:Soil
AZOTOBACTER; SOIL/bacteriology
Produktivnost' azotfikaktsii azotobaktera sibirskikh pochv.