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.
Effects of nitrate addition on abundances of functional genes involved in S cycling. Significances between the samples from the initial stage and different time points following nitrate amendment were performed by the Student t-test. ***P<0.01; **P<0.05; *P<0.1.
