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Root research, maple root system growth difficulty in oak forest
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Gary Watson and research volunteers washing roots
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Collaborative researchers from Northern Illinois University and Arboretum staff study root-system-nutrient interrelationships1982 – 1983
Kohout, John
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Research crew operating a hydropneumatic elutriation root washing system in laboratory1990s
Kohout, John
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Nicole Cavender and Murphy Westwood looking at tree roots in FranceApril 27 2014
The Morton Arboretum