Table 1 Selected physicochemical properties of topsoil (0–20 cm depth) of the two experimental sites and manure

Particle size (%)

Sand

77

54

Silt

7

20

Clay

16

26

Textural class

Sandy loam

Sandy clay loam

pH (water)

4.9

5.28

7.48

3.5–4.5 (in H₂O 1:1)

OC (%)

1.07

1.19

26

1–2 (Walkley and Black)

TN (%)

0.05

0.06

3.6

C/N

22.34

19.39

7.86

AP (mg kg⁻¹)

20.51

3.78

1.32^a

2–4

CEC (cmol⁺ kg⁻¹)

2.97

4.56

22.01

Exchangeable bases (cmol ⁺ kg ⁻¹ )

Ca

1.22

2.57

8.6^a

0.25–1

Mg

0.29

1.2

0.62^a

0.2–0.4

K

0.12

0.09

1.99^a

0.1–0.15

Na

0.044

0.045

7.75

Total exchangeable bases

1.674

3.905

Micronutrients (mg kg⁻¹)

Zn

0.74

0.41

142.8

0.5–1

Cu

6.18

1.31

10.39

0.1–0.3

Mn

57

107

182

5–10

Fe

78

59

95

1–10