Nitrous oxide emissions from irrigated cotton soils of northern Australia
Grace, Peter, Rowlings, David, Rochester, Ian, Kiese, Ralf, & Butterbach-Bahl, Klaus (2010) Nitrous oxide emissions from irrigated cotton soils of northern Australia. In Gilkes, R & Prakongkep, N (Eds.) Soil Solutions for a Changing World: proceedings of the 19th World Congress of Soil Science, 1 - 6 August 2010, Australia.
An automated gas sampling methodology has been used to estimate nitrous oxide (N2O) emissions from heavy black clay soil in northern Australia where split applications of urea were applied to furrow irrigated cotton. Nitrous oxide emissions from the beds were 643 g N/ha over the 188 day measurement period (after planting), whilst the N2O emissions from the furrows were significantly higher at 967 g N/ha. The DNDC model was used to develop a full season simulation of N2O and N2 emissions. Seasonal N2O emissions were equivalent to 0.83% of applied N, with total gaseous N losses (excluding NH3) estimated to be 16% of the applied N.
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|Item Type:||Conference Paper|
|Keywords:||Nitrous oxide, cotton, DNDC, nitrogen|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
Past > Institutes > Institute for Sustainable Resources
|Deposited On:||01 Oct 2010 12:58|
|Last Modified:||01 Mar 2012 00:18|
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