News tagged with surface soil

Wood chips help curb nitrate leaching

(PhysOrg.com) -- Wood chips can significantly stem nitrate flow from crop fields into the surrounding watershed, according to a U.S. Department of Agriculture (USDA) study.

Feb 20, 2012
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Planting depth's effect on container-grown trees

Many landscape trees are started in-ground, then sold as bare-root ''liners'' to producers who plant them in large containers to grow. To minimize wind damage and to facilitate transport from potting areas ...

Nov 17, 2011
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Corn gluten meal tested on squash survival, yields

Corn gluten meal, a powdery byproduct of the wet-milling process of corn, has shown important potential for use as an organic, non-selective preemergence or preplant-incorporated herbicide. A team of researchers from the ...

Mar 17, 2011
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Digging deep for ways to curb ammonia emissions

Dairy farmers can greatly reduce ammonia emissions from their production facilities by injecting liquid manure into crop fields below the soil surface, according to research by the U.S. Department of Agriculture (USDA).

Sep 28, 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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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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