[On the problem of work hazard in silage].
D002245:Carbon Dioxide / Q000633:toxicity*; D006801:Humans; D009584:Nitrogen / Q000633:toxicity*; D009784:Occupational Diseases; D012820:Silage; D014937:Work
D002245:Carbon Dioxide; D009584:Nitrogen
CARBON DIOXIDE/toxicology; NITROGEN/toxicology; OCCUPATIONAL DISEASES