The influence of oxygen concentrations on denitrification in soil |
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| Authors: | Jack T Trevors |
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| Institution: | (1) Department of Environmental Biology, Ontario Agricultural College, University of Guelph, N1G 2W1 Guelph, Ontario, Canada |
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| Abstract: | Summary The influence of different O2 concentrations on denitrification was studied in an agricultural soil. In both nitrate and nitrite amended soil, denitrification was not observed until the O2 concentration decreased to 0.20 and 0.21  mol/ml, respectively. Denitrification was not observed in soil samples with O2 concentrations above 0.28 mol/ml in the gas phase. These findings suggest that a completely anoxic environment is not required for denitrification to occur in soil. |
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| Keywords: | Denitrification Oxygen Nitrite Nitrate Soil Acetylene blockage |
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