The making of Dig It! the Secrets of Soil exhibit

At the 2008 Joint Annual Meeting in Houston, the Smithsonian's Design Team will explain details about the making of the new Dig It the Secrets of Soil exhibit that recently opened at the Natural History Museum in Washington, ...

3-D laser scanning: A new soil quality measurement

Soil researchers pay close attention to bulk density, as it is one of the most common soil measurements and it is often used as a measure of soil quality. A soil's bulk density can be indicative of the ease of root penetration, ...

Illinois Soil Nitrogen Test measures microbial nitrogen

Contrary to the prevailing view, cereal crops derive the majority of their nitrogen from the soil, not fertilizer. Soils differ considerably in microbial activities that determine nitrogen-supplying power, and these differences ...

Getting to the root of the matter

Like most things that exist underground, plant roots are out-of-sight and easily forgotten, but while flowers, leaves, and other aboveground plant parts are more familiar, plant roots are equally deserving of our appreciation. ...

Impact of floods on soils

A recent study conducted in the Midwestern United States examined the effects of harsh wet conditions on both cultivated and uncultivated soils, vastly advancing the knowledge of water's effects on aggregation. Soil aggregation ...

Solution blooming for fracking spills?

North Dakota's oil boom can have a salty side-effect. Wastewater from oil drilling and hydraulic fracturing – or fracking – is often laden with salts and can spill, contaminating soils. In 2014, for example, 42 such brine ...

Can a moss help clean up waterways?

Hydrocarbons from our cars, oil spills and industrial contamination can get into our waterways by many paths. Researchers recently studied if a common "willow moss" could work to soak up these hydrocarbons, and clean up waterways.

Where have all the students gone?

Why are the number of students studying soil science as a major declining across the United States? Mary Collins, University of Florida, Gainesville, writes about this in an article published in the 2008 Journal of Natural ...

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