News tagged with surface soil

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 ...

dateJun 21, 2010 in Environment
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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 Mars can help future ...

dateMay 31, 2010 in Space Exploration
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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 ...

dateApr 23, 2010 in Environment
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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 ...

dateApr 21, 2010 in Other
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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 improved water ...

dateApr 21, 2010 in Ecology
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