title: [Oligonitrophilic bacteria in pine rhizosphere in the northern steppe of the Ukrainian SSR].
mesh_terms: D001395:Azotobacter / Q000302:isolation & purification; D001419:Bacteria / Q000302:isolation & purification / Q000378:metabolism*; D003013:Clostridium / Q000302:isolation & purification; D009584:Nitrogen / Q000378:metabolism*; D009586:Nitrogen Fixation; D014197:Trees; D014455:Ukraine
chemical_list: D009584:Nitrogen
vernacular_title: Olihonitrofil'ni bakterii u rizosferi sosny v umovakh pivnichnoho stepu URSR.