Ion

Red soil group (n = 109)

Yellow soil group (n = 45)

Mean ± Std.D

C.V. (%)

Skewness

Kurtosis

Mean ± Std.D

C.V. (%)

Skewness

Kurtosis

H⁺

0.23 ± 0.13b

58.44

0.71

−0.38

0.19 ± 0.10bc

52.58

0.37

−0.79

Al³⁺

4.55 ± 1.47a

32.26

0.53

0.46

4.22 ± 1.24a

29.35

0.20

−0.46

Ca²⁺

0.32 ± 0.21b

65.63

0.93

0.27

0.36 ± 0.24b

66.28

0.92

0.11

Mg²⁺

0.13 ± 0.09c

68.12

0.64

−0.28

0.11 ± 0.08c

68.12

0.59

0.06

K⁺

0.16 ± 0.09c

56.85

0.83

0.42

0.16 ± 0.11c

65.78

0.37

−0.97

Na⁺

0.08 ± 0.06c

79.53

0.63

−0.46

0.11 ± 0.06c

54.23

0.82

−0.33

BSP

13.26 ± 5.85B

44.16

0.30

−0.81

16.03 ± 7.87A

49.11

0.40

−0.40