Image Number D1856-11 |
At a Pennsylvania dairy research site, ARS scientists and university collaborators collect ammonia samples and review plot layouts in an LTAR common experiment.
Photo by Stephen Ausmus.
Please visit our Image Gallery.
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.