title: [Counting of facultative symbiotrophic nitrogen-fixing microorganisms].
mesh_terms: D001431:Bacteriological Techniques; D008722:Methods; D009586:Nitrogen Fixation; D012988:Soil Microbiology
vernacular_title: Kolichestvennyĭ uchet fakul'tativno-simbiotrofinykh azotfiksatorov.