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Spotlight on soil carbon and nitrogen fertiliser

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Automated gas chambers measuring nitrous oxide emissions from canola planted on soils with high and low carbon content at the Liebe Group's soil biology trial site in 2012... Researchers are now interested in learning whether increased soil carbon levels alter nitrogen fertiliser requirements for crops, and if the risk of higher nitrous oxide emissions from crop production increases... "In the first instance, we want to assess whether increasing soil carbon will make a difference to the amount of nitrogen required to produce a barley crop," Dr Barton says...