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FOCHT D. D.
Soil Science: September 1974
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ABSTRACTA zero-order (with relation to nitrate concentration) kinetic model for denitrification is presented to illustrate the variability of nitrous oxide concentrations in the soil atmosphere. The percentage of N2O with relation to N2 is not greatly affected by temperature changes. Aeration and pH are the two functions causing the greatest variability in N2O production. Though the rates of denitrification increase with increasing pH and decreasing aeration, the percentage of N2O declines: this is attributed to a greater increase in the rate of N2O reduction than in its rate of formation.

A zero-order (with relation to nitrate concentration) kinetic model for denitrification is presented to illustrate the variability of nitrous oxide concentrations in the soil atmosphere. The percentage of N2O with relation to N2 is not greatly affected by temperature changes. Aeration and pH are the two functions causing the greatest variability in N2O production. Though the rates of denitrification increase with increasing pH and decreasing aeration, the percentage of N2O declines: this is attributed to a greater increase in the rate of N2O reduction than in its rate of formation.

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