 Image Number D150-1 |
Swine manure is sprayed on growing alfalfa with a research-scale manure applicator.
Photo by Joann Lamb.
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.