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Table 1 Summary of soil physicochemical properties

From: Assessment of organochlorine pesticide residues in soils and drinking water sources from cocoa farms in Ghana

Sites

Nkrankwanta (1)

Diabaa (2)

Krakrom (3)

Kwakuanya (4)

Total mean

Parameters

Range

Mean ± SD

Range

Mean ± SD

Range

Mean ± SD

Range

Mean ± SD

Mean ± SD

pH

7.34–7.80

7.56 ± 0.23

7.73–7.96

7.88 ± 0.13

8.46–8.52

8.49 ± 0.03

8.21–8.39

8.34 ± 0.04

8.07 ± 0.33

Electrical conductivity (µS/cm)

138.0–296.0

210.0 ± 79.8

163.0–282.0

242.0 ± 68.4

183.0–239.0

203.0 ± 30.9

156–283

204.0 ± 68.9

214.8 ± 14.3

Organic carbon (%)

0.89–1.95

1.38 ± 0.53

5.67–5.99

5.83 ± 0.16

5.78–6.14

5.94 ± 0.18

5.78–6.46

6.12 ± 0.35

4.83 ± 1.78

Organic matter (%)

1.54–3.36

2.38 ± 0.92

9.78–10.3

10.0 ± 0.28

9.96–10.6

10.3 ± 0.31

9.96–11.1

10.6 ± 0.60

8.32 ± 3.07

Available potassium (mg/kg)

0.39–0.95

0.59 ± 0.30

0.45–0.50

0.48 ± 0.03

0.36–0.89

0.64 ± 0.27

0.21–0.50

0.35 ± 0.15

0.52 ± 0.10

Total nitrogen (%)

1.61–2.63

2.10 ± 0.51

1.74–2.46

2.13 ± 0.36

1.57–2.10

1.87 ± 0.27

1.51–1.79

1.64 ± 0.14

1.94 ± 0.18

Phosphorus (mg/kg)

0.55–0.70

0.64 ± 0.08

0.50–0.91

0.71 ± 0.21

0.55–0.69

0.63 ± 0.07

2.40–2.50

2.47 ± 0.06

1.11 ± 0.70

NH4 + (mg/l)

23.1–46.9

38.9 ± 13.7

30.1–42.0

34.8 ± 6.35

43.4–48.3

45.0 ± 2.83

35.0–49.0

42.9 ± 7.18

40.4 ± 3.49

NO3 − (mg/l)

23.8–29.4

25.7 ± 3.23

33.6–45.5

40.1 ± 6.04

38.5–44.1

40.6 ± 3.05

28.0–30.1

28.9 ± 1.07

33.8 ± 5.93

Exchangeable potassium (cmol/kg)

0.20–0.26

0.24 ± 0.03

0.27–0.51

0.43 ± 0.14

0.38–0.51

0.60 ± 0.27

0.21–1.15

0.67 ± 0.47

0.49 ± 0.15

Sand (%)

50.1–83.3

65.9 ± 16.7

59.7–80.5

67.8 ± 11.0

59.5–60.4

59.8 ± 0.47

57.0–69.0

63.3 ± 6.04

64.2 ± 2.68

Clay (%)

12.5–35.0

24.2 ± 11.3

7.50–15.0

11.7 ± 3.81

12.5–17.5

15.8 ± 2.89

12.5–12.5

12.5 ± 0.00

16.1 ± 4.43

Silt (%)

4.20–14.9

9.96 ± 5.41

12.0–25.3

20.5 ± 7.35

22.1–28.0

24.3 ± 3.25

18.5–30.5

24.2 ± 6.04

19.7 ± 5.23

Texture

 

Sandy-clay-loam

 

Sandy-loam

 

Sandy-loam

 

Sandy-loam

 
  1. SD standard deviation
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