Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/16355
Title: Legumes in Crop Rotations Reduce Soil Nitrous Oxide Emissions Compared with Fertilized Non-Legume Rotations
Contributor(s): Schwenke, Graeme  (author)orcid ; Herridge, David  (author)orcid ; McMullen, Guy (author); Haigh, Bruce (author)
Publication Date: 2014
Handle Link: https://hdl.handle.net/1959.11/16355
Abstract: Soil nitrous oxide (N₂0) emissions were measured from a range of dryland crops and crop rotations in the northern grains region of Australia. The objective was to compare N₂0 emissions associated with the growth and post-harvest residue decomposition of a nitrogen (N₂)-fixing legume crop with that from N fertilized non-legume crops. From 2009 to 2012 a dryland crop rotation experiment was conducted on a black Vertosol (cracking clay soil) representative of the main soil type used for grain growing in the region. Crop rotation treatments were: canola + N_wheat + N_barley + N (CaWB), chickpea_wheat + N_barley (CpWB), chickpea_wheacchickpea (CpWCp), and chickpea_sorghum + N (CpS). Soil emissions of N₂0 were monitored in the field seven to eight times per day using an automated system of chambers connected to a gas chromatograph. Soil mineral N and plant N uptake were measured by regular field sampling. During the project, extremes of cold, hot, wet and dry weather were experienced that were often well below or above long-term averages for the site.
Publication Type: Conference Publication
Conference Name: International Symposium on Managing Soils for Food Security and Climate Change Adaptation and Mitigation, Vienna, Austria, 23rd - 27th July, 2012
Conference Details: International Symposium on Managing Soils for Food Security and Climate Change Adaptation and Mitigation, Vienna, Austria, 23rd - 27th July, 2012
Source of Publication: Proceedings - International Symposium on Managing Soils for Food Security and Climate Change Adaptation and Mitigation, p. 235-241
Publisher: Food and Agriculture Organization of the United Nations
Place of Publication: Rome, Italy
Field of Research (FOR): 070302 Agronomy
050301 Carbon Sequestration Science
070101 Agricultural Land Management
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Other Links: http://www-naweb.iaea.org/nafa/swmn/public/proceedings-swmcn.html
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Appears in Collections:Conference Publication
School of Environmental and Rural Science

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