 Image Number K7642-1 |
Using a small wind tunnel system, soil scientist Rodney Thompson prepares to measure ammonia loss from liquid dairy manure applied to the soil surface.
Photo by Keith Weller
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.