TABLE 1.

Pearson’s correlations between soil physicochemical factors and phosphate-solubilizing bacterial number and P-cycling-related gene abundance^a

Property	Colony no.		Gene abundance
	Col-CaP	Col-Phy	Gcd	bpp
TC	–0.340*	0.088	0.747***	0.451**
SOC	–0.351*	0.017	0.723***	0.524**
TN	–0.348*	0.002	0.755***	0.469**
TP	–0.411**	0.236	0.797***	0.373**
Labile P	–0.576***	0.043	0.784***	0.199
IP	–0.377*	0.123	0.728***	0.258
OP	–0.296*	0.349*	0.019	0.071
NAIP	0.086	0.203	0.489**	0.845***
AP	–0.437**	0.166	0.750***	0.368*
TK	–0.056	–0.083	0.359*	0.748***
AK	–0.111	0.134	0.600***	0.736***

^aAbbreviations of physicochemical factors are defined in Materials and Methods. The Col-CaP and Col-Phy denote tricalcium phosphate-solubilizing bacterial number and phytate-degrading bacterial number, respectively. Asterisks denote significance (*, P < 0.05; **, P < 0.01; ***, P < 0.001).