News tagged with nutrient content
Higher carbon dioxide may give pines competitive edge
(PhysOrg.com) -- Pine trees grown for 12 years in air one-and-a-half times richer in carbon dioxide than today's levels produced twice as many seeds of at least as good a quality as those growing under normal ...
Aug 03, 2009 |
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Warmer climate entails increased release of carbon dioxide by inland lakes
Much organically bound carbon is deposited on inland lake bottoms. A portion remains in the sediment, sometimes for thousands of years, while the rest is largely broken down to carbon dioxide and methane, which are released ...
Space & Earth / Earth Sciences
Jul 21, 2010 |
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Hearty bacteria help make case for life in the extreme
(PhysOrg.com) -- The bottom of a glacier is not the most hospitable place on Earth, but at least two types of bacteria happily live there, according to researchers.
Jan 19, 2012 |
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Winter sports threaten indigenous mountain birds
In the winter months, the mountain ranges of central Europe attract thousands of tourists for skiing, snowboarding and other outdoor sports, but conservationists fear this annual invasion may threaten indigenous bird species, ...
Jan 11, 2011 |
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Ultra-fine coatings on sediment grains influence nitrate and sulfate storage in soil
Tiny sediment grains are covered with a very fine-grained, complex mixture of minerals in an open fabric that results in a large surface area in contact with water between the grains. Scientists at the U.S. Geological Survey ...
Feb 23, 2009 |
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With feedlot manure, it pays to be precise
The same precision farming techniques that work with crops can work with manure management on cattle feedlots, according to U.S. Department of Agriculture (USDA) scientists.
Jun 02, 2011 |
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From grass to water, Chesapeake Bay experts differ on meaning of 'clean'
After a recent rain, Baltimore's Inner Harbor is clogged with an eclectic combination of garbage -- soda bottles and a large purple ball, sticks and dirt, candy wrappers and a hollowed-out television.
Sep 29, 2009 |
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