Fig. 7.
Relationship between viable plate counts (Log10 cfg−1) and treatment period (days) at 20% pollution level. a Heterotrophic bacteria (HEB). b Nitrogen fixing bacteria (NFB)
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.