Stabilization and Ecological Risk Evaluation of Heavy Metals in Farmland Soils by Addition of Attapulgite Modified with Phosphates

Table 2

The pH, CEC (cmol/kg), EC (ms/cm), and available P, K, and N (mg/kg⁻¹) of stabilized soils.

Treatments	CK	ATP	AMSP	AAPR	AMRP	ASSP	AMAP	AFMP	-value
PH	b	ab	c	a	e	f	g	d	218.556
EC	ab	bc	c	a	b	b	b	ab	4.495
CEC	de	d	ab	a	cd	e	bc	b	18.815
Available P	b	b	a	a	a	a	a	a	14.695
Available K	e	f	d	b	a	b	c	c	402.646
Available N	de	d	e	c	e	c	a	b	1221.227

Values were (). The same letters within a line indicated no significant differences at . Statistical significance at 0.01.