Table 2. PERMANOVA results (F values) showing differences in bacterial community composition by location, time and mulch treatment.

Significant differences are in bold; *p < 0.05; **p < 0.01; ***p < 0.001.

Factor/treatment	Levels	TN (F)	WA (F)
Location	TN, WA	117.34***
Time	Spring 2015, Fall 2015, Spring 2016, Fall 2016	17.83***	32.84***
Mulch treatments (Spring 2015—initial sampling)	7 treatments: 5 BDMsa (BioAgri, Organix, PLA/PHA, Naturecycle, Weedguard), PEb, no mulch control	0.61	0.81
Mulch treatments (Fall 2015)			0.87	1.96**
Mulch treatments (Spring 2016)			0.84	0.81
Mulch treatments (Fall 2016)		1.15	1.26

Notes.

^aBDMs, biodegradable mulches

^bPE, polyethylene