Tag Archives: soil

How much carbon can we dig in?

Healthy soil for a healthy planet

To rein in global warming, scientists believe it will not be enough to reduce our greenhouse gas emissions: we will also need to remove CO2 from the atmosphere.

Soils are an important reservoir for carbon, as they contain nearly double that found in the atmosphere and vegetation combined. Agricultural practices have degraded soil carbon stocks, so there is a large potential for atmospheric carbon to be sequestered in soils.

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Granular plant protection

A farmer whose onion paddock is hit by the fungal disease “white rot” faces the loss not only of that crop but of productive use of the field for several years. Relief could be at hand, however, thanks to a novel granulated fungicide now being tested in the field in Victoria.

A new granulated fungicide will help onion farmers treat white rot. Credit: iStockphoto

“In the case of white rot, there is no existing commercially acceptable treatment and if a farmer has an infestation in their field they can’t use it for onions or similar crops for up to 15 years,” says Anthony Flynn, managing director of the agricultural chemical research company Eureka! AgResearch. “They’ve just had to move the crop on to the next paddock.”

The new granulated fungicide targets the soil-borne fungus Sclerotium cepivorum.
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Dirt solves murder mysteries

Australian detectives can now use a pinch of dirt or a speck of dust to help solve crimes, thanks to techniques developed at the Australian synchrotron.

PHOTO: A SPECK OF DUST OR A PINCH OF DIRT IS NOW ENOUGH TO SOLVE A MURDER. CREDIT: MITARAT
Soil composition is as unique as a fingerprint so scientists can analyse dirt samples and, in theory, match their results to specific regions of the Earth’s surface. Until recently, large sample sizes were needed to make this work.
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Australian scientists elected to Royal Society

Four of Australia’s most accomplished scientists have been elected to the oldest scientific academy in continuous existence, the Royal Society of London.

PROF IAN FRAZER LAUNCHES THE CERVICAL CANCER VACCINE GARDASIL. CREDIT: UNIVERSITY OF QUEENSLAND

Prof Ian Frazer, Prof Alan Cowman, Prof Mark Randolph and Dr Patrick Tam join 40 other scientists to be elected to the Royal Society in 2011, which celebrated its 350th anniversary last year.

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