Table 1.

PERMANOVA analysis of bulk soil, rhizosphere and endosphere microorganisms with different nitrogen application rates.

Factors	Bacterial community		Fungal Community
	R2	p-value	R2	p-value
Bulk soil	0.407	0.001	0.532	0.001
Rhizosphere	0.397	0.001	0.55	0.001
Endosphere	0.409	0.001	0.502	0.001
Nitrogen fertilizer application rate	0.114	0.112	0.172	0.003
Ecological niche	0.322	0.001	0.352	0.001