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 Image Number K7757-1 |
To evaluate the effect of PAM on soil erosion, (left to right) Purdue University Ph.D. Candidate Eusebio Ventura collects runoff water to measure sediment while graduate student Belle Wallace, ARS soil scientist Darrel Norton, farmer Ralph Woodward, and graduate student Katerina Dontsova observe and assist with trials.
Photo by Keith Weller.
