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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Union County New Mexico is a landscape of striking diversity. Out of expansive rangelands rise sporadic yet majestic cinder cone volcanoes and mesas preserved by basalt, part of the Raton-Clayton Volcanic Field. Capulin volcano, ...
Earth Sciences
Oct 20, 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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Reuse of agricultural drainage water (DW) for irrigation is one of the few on-farm water management options available to growers on the west side of California's San Joaquin Valley (SJV) for reducing drainage water volumes ...
Environment
Oct 8, 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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NASA's Phoenix Scout Lander reached Mars on May 25,, opened a soils lab, and started looking for water. Phoenix uses a robotic scoop arm to deliver regolith samples to the suite of instruments aboard the Lander--with one ...
Space Exploration
Sep 28, 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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Selenium has been referred to as an "essential toxin" due to the fact that it shows only a marginal line between the nutritious requirement and toxic effects upon exposure. The steep dose response curve due to bioaccumulation ...
Environment
Sep 15, 2008
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Scientists at the University of California in Davis present results from a newly developed non-invasive technique that uses thermal neutron attenuation to measure spatial and temporal distribution of water in soils. The study, ...
Environment
Sep 8, 2008
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Serpentine soils contain highly variable amounts of calcium, making them marginal lands for farming. Successful management of serpentine soils requires accurate measurement of the calcium they hold. Research published this ...
Environment
Aug 19, 2008
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