Table 2 Chemical and physical properties of soil (0–20 cm depth) in study sites

Chemical properties

 pH

4.75–6.25

5.95^MA

6.09^SLA

6.25^SLA

 OC

2.0–7.5%

2.78^OP

2.45^OP

2.33^OP

 Tot. N

0.2–0.5%

0.19^L

0.17^L

0.22^OP

 Bray P

12–96 ppm

10.20^L

11.45^L

11.28^L

 Exch. K⁺

91–286 ppm

0.22^D

0.85^D

0.81^D

 Exch. Ca²⁺

61–139 ppm

0.59^D

0.80^D

0.60^D

 Exch. Mg²⁺

40–194 ppm

0.95^L

1.50^L

1.10^L

 DTPA Fe

12–65 ppm

81.19^H

38.20^OP

37.10^OP

 DTPA Mn

5–35 ppm

62.39^H

57.26^H

56.29^H

 DTPA Zn

2.1–7.0 ppm

4.43^OP

3.32^OP

2.96^OP

 DTPA Cu

0.51–7.7 ppm

1.56^OP

2.81^OP

3.52^OP

Physical properties

 Soil particle size density (P.S.D)

%Clay

39.2

37.2

39.22

%Silt

10.82

9.82

9.82

%Sand

49.96

52.96

50.96

Texture class

Sandy clay

Sandy clay

Sandy clay