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United States Department of Agriculture

Agricultural Research Service

Image Number D1602-1

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Image Number D1602-1

To determine potential changes in nutrient cycling under different management practices, soil scientist Veronica Acosta-Martinez and biological technician Jon Cotton measure enzyme activities in sandy soils. Soil enzyme assays are simple, cost effective, and sensitive in soil quality assessments compared to other soil biochemical analyses.


Photo by Stephen Ausmus.

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Last Modified: 11/24/2009
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