News tagged with surface soil

Scientists unravel human-ecosystem interactions

Whether it is a single rock being overturned or an entire mountaintop being removed, humans play a continuous role in environmental processes, and vice versa. Ecological scientists will discuss findings on human-ecosystem ...

Aug 03, 2010
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Image: Apollo 16: Footsteps Under High Sun

(PhysOrg.com) -- The lunar module Orion landed in the Descartes Highlands of the moon on April 21, 1972. The Apollo 16 mission targeted a highland region. Originally thought to be a volcanic site, the samples ...

Jul 08, 2010
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Can one-time tillage improve no-till?

A one-time tillage has no adverse effects on yield or soil properties on no-till land, according to field research conducted at the University of Nebraska-Lincoln. Although tillage is another expense for farmers and generally ...

Jun 28, 2010
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Compost filter socks improve runoff from croplands

Water runoff from cropped farm fields can contain large amounts of eroded soil as well as some of the fertilizer and herbicide. Expanding on existing conservation practices, a team of scientists has tested whether compost ...

Jun 21, 2010
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Mars was Wet, but was it Warm?

Mars is frozen today, but when it was young there may have been liquid water on its surface. What does the latest evidence indicate about the ancient martian climate? Understanding the past environment of ...

May 31, 2010
4.9 / 5 (11) 10 | with audio podcast

Helping the NRC look below the surface

Agricultural Research Service (ARS) scientists are helping U.S. Nuclear Regulatory Commission (NRC) experts model the movement of radioactive materials in the soil. Their findings can be used to fine-tune the risk assessment ...

Apr 23, 2010
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Planting depth affects popular landscape tree

Landscape trees are increasingly being produced using container nursery systems rather than traditional field production practices. In contrast to field production techniques, successful container production requires a series ...

Apr 21, 2010
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Cover crop mulches tested for no-till organic onions

Conservation tillage encompasses a range of techniques for establishing crops in the previous crop's residues, which are purposely left on the soil surface. The principal benefits of conservation tillage are ...

Apr 21, 2010
5 / 5 (1) 0

The Meandering Channels of Mars

Sinuous channels on the Martian surface may be evidence of relatively recent rainfall. Researchers plan to test this hypothesis by studying sinuous streams on Earth.

Dec 10, 2009
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