title: Improved CH4 production from solid waste under zero valent metal amendments
design: Triplicate PCR using 515F-Y and 909R primers. Parada et. al 2016. Every base matters: Assessing small subunit rRNA primers for marine microbiomes with mock communities, time series and global field samples.  Environ Microbiol 18:14031414. Wang et. al 2018. Assessment of 16S rRNA gene primers for studying bacterial community structure and function of aging flue-cured tobaccos. AMB Express 8:19. Contact corresponding author for more details.