The Delmarva Peninsula, flanking the eastern shore of the Chesapeake Bay, is home to some 600 million chickens. The resulting poultry manure and some of the chicken house bedding material is usually composted and then spread ...
Environment
Jan 28, 2009
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Following the Clean Air Act Amendments of 1970 and 1990 acidic deposition in North America has declined significantly since its peak in 1973. Consequently, research has shifted from studying the effects of acidic deposition ...
Environment
Jan 12, 2009
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A new calibration tool was recently developed to help students and soil scientists calibrate their thumb and forefinger for the correct amount of pressure.
Environment
Jan 5, 2009
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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, ...
Environment
Dec 3, 2008
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One of the biggest threats to today's farmlands is the loss of soil organic carbon (SOC) and soil organic matter (SOM) from poor land-management practices. The presence of these materials is essential as they do everything ...
Environment
Nov 19, 2008
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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 ...
Other
Nov 3, 2008
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The practice of no-till has increased considerably during the past 20 yr. The absence of tillage coupled with the accumulation of crop residues at the soil surface modifies several soil properties but also influence nitrogen ...
Environment
Oct 22, 2008
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The ability to estimate soil texture-by-feel is an important skill that students and registered soil scientists should learn.
Earth Sciences
Oct 15, 2008
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Combating soil erosion is a primary concern for agricultural producers in the United States, and many have incorporated conservation tillage systems in their effort to maintain a profitable crop output.
Environment
Oct 1, 2008
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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, ...
Earth Sciences
Sep 26, 2008
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