An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
 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.
