Factor	Correlation	B	Cu	Fe	Mn	Mo	Zn
Altitude	R	0.020	−0.043	0.051	−0.092^*	0.057	0.032
Altitude	P (2-tails)	0.658	0.336	0.250	0.039	0.202	0.477
pH	R	−0.095^*	−0.070	−0.681^**	−0.273^**	0.017	0.001
pH	P (2-tails)	0.034	0.120	0.000	0.000	0.701	0.990
OM	R	−0.081	0.038	0.207^**	0.002	0.001	0.282^**
OM	P (2-tails)	0.072	0.398	0.000	0.970	0.986	0.000
Sand	R	−0.089^*	0.085	−0.005	−0.279^**	−0.123^**	0.138^**
Sand	P (2-tails)	0.047	0.057	0.909	0.000	0.006	0.002
Silt	R	−0.021	−0.050	0.066	−0.009	0.113^*	−0.041
Silt	P (2-tails)	0.640	0.265	0.140	0.844	0.012	0.362
Clay	R	0.114^*	−0.051	−0.049	0.311^**	0.041	−0.116^**
Clay	P (2-tails)	0.011	0.253	0.274	0.000	0.358	0.009