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United States Department of Agriculture

Agricultural Research Service

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AFSRC Picture of the Week, September 1, 2008
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Greenhouse scanners

AFSRC scientists are discovering new information about soil components and processes that will improve pasture and amenity grass establishment and function in Appalachian hill-land grazing and turfgrass ecosystems. Nutrient laden fog from aeroponic scanning meso-rhizotron (ASM) units is used to grow plants with their roots in chambers attached to computer controlled scanners. With this system movies can be made of root growth under different environmental conditions such as drought or nutrient stress.  These movies will help to develop management practices to reduce the impact of environmental stress on Appalachian agriculture. This picture of two units with 8 ASMs each and six plants per ASM, was taken at dawn to highlight the fog.

Photo by Susan Boyer

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Last Modified: 9/4/2008
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