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Carbon dioxide concentration in soil effects on nitrification denitrification and associated nitrous oxide production



Carbon dioxide concentration in soil effects on nitrification denitrification and associated nitrous oxide production



Soil Biology & Biochemistry 17(4): 571-574



Experiments were conducted to study the effects of a range of CO2 concentrations (ambient to 100%) on nitrification, denitrification and associated N2O production in a silt loam soil. It was found that an increase in CO2 concentration from 0.3-100% CO2 increasingly retarded the rate of nitrification. No nitritification occurred at 100% CO2 . N2O production associated with nitrification increased as CO2 increased from 0.3-2.6% and intended to be greater as CO2 concentration increased to 73%. At 100% CO2, no N2O was produced during 7 days at 25.degree. C. CO2 did not affect N2O production or reduction in a saturated NO3--amended soil or the rate of N2O reduction in anaerobic environments.

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Accession: 004877579

Download citation: RISBibTeXText

DOI: 10.1016/0038-0717(85)90027-6


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