FIG 2.
Abundances of amoA genes of ammonia-oxidizing archaea (AOA) (a) and ammonia-oxidizing bacteria (AOB) (b) in the treatments. Vertical bars represent SEMs (n = 3). Different letters denote significant differences between treatments (P < 0.05).
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.