title: [Determination of nitrogen fixation activity by an acetylene method for setting the hygienic standard for the soil content of heavy metals].
mesh_terms: D000114:Acetylene / Q000378:metabolism*; D003300:Copper / Q000494:pharmacology*; D008452:Maximum Allowable Concentration; D008722:Methods; D009532:Nickel / Q000494:pharmacology*; D009586:Nitrogen Fixation / Q000187:drug effects*; D010084:Oxidation-Reduction; D012989:Soil Pollutants; D015032:Zinc / Q000494:pharmacology*
chemical_list: D012989:Soil Pollutants; D003300:Copper; D009532:Nickel; D015032:Zinc; D000114:Acetylene
vernacular_title: Opredleneie aktivnosti azotfiksatsii atsetilenovym metodom dlia gigienicheskogo normirovaniia soderzhaniia tiazhelykh metallov v pochve.