Table 3 Pearson correlation matrix showing the relationship among the studied soil properties.

	pH	OC (%)	AN (kg ha¯¹)	AP (kg ha¯¹)	AK (kg ha¯¹)	AS (mgkg¯¹)	AZn (mgkg¯¹)	AFe (mgkg¯¹)	AMn (mgkg¯¹)	ACu (mgkg¯¹)	Ex. Ca (cmolkg¯¹)	Ex. Mg (cmol kg¯¹)
pH	1.000
OC (%)	−0.558^**	1.000
AN (kg ha¯¹)	−0.390^**	0.823^**	1.000
AP (kg ha¯¹)	−0.630^**	−0.100^NS	−0.126^NS	1.000
AK (kg ha¯¹)	0.852^**	−0.331^**	−0.239^*	−0.684^**	1.000
AS (mgkg¯¹)	−0.594^**	0.789^**	0.704^**	0.059^NS	−0.430^**	1.000
AZn(mgkg¯¹)	−0.665^**	0.824^**	0.641^**	0.094^NS	−0.413^**	0.684^**	1.000
AFe (mgkg¯¹)	−0.689^**	0.091^NS	0.047^NS	0.749^**	−0.705^**	0.196^NS	0.218^*	1.000
AMn(mgkg¯¹)	−0.879^**	0.303^**	0.171^NS	0.751^**	−0.874^**	0.396^**	0.459^**	0.854^**	1.000
ACu(mgkg¯¹)	−0.635^**	−0.028^NS	−0.149^NS	0.751^**	−0.746^**	0.146^NS	0.123^NS	0.760^**	0.835^**	1.000
Ex. Ca (cmol kg¯¹)	0.879^**	−0.566^**	−0.426^**	−0.492^**	0.829^**	−0.644^**	−0.676^**	−0.628^**	−0.822^**	−0.601^**	1.000
Ex. Mg (cmol kg¯¹)	0.598^**	−0.509^**	−0.354^**	−0.217^*	0.490^**	−0.538^**	−0.636^**	−0.353^**	−0.542^**	−0.327^**	0.813^**	1.000

Pearson correlation analysis was conducted at a significance level of 0.05.
The symbols * and ** indicate significance at p ≤ 0.05, and p ≤ 0.01 respectively, while NS denotes a non-significant correlation.

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