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Table 1 Statistical values of selected soil acidity and fertility parameters (n = 132)

From: Spatial prediction of soil acidity and nutrients for site-specific soil management in Bedele district, Southwestern Ethiopia

Variables

Statistics

Min

Max

Mean

SD

CV (%)

Skewness

Kurtosis

Clay (%)

14

72

44

11.78

26.77

0.24

2.49

Silt (%)

8

34

20

5.04

25.20

− 0.14

3.11

Sand (%)

10

68

36

12.85

35.69

− 0.19

2.36

pH (H2O)

4.5

6.8

5.3

0.53

10

0.67

2.83

EA (cmolc kg−1)

0.1

5.1

1

0.39

39

1.04

2.96

OC (%)

0.3

5.6

3.3

1.03

31.21

− 0.58

3.20

TN (%)

0.03

0.48

0.28

0.09

32.14

− 0.57

3.18

Av. P (mg kg−1)

0.8

38.6

6.2

2.80

45.16

1.07

3.78

Ex. Ca (cmolc kg−1)

0.3

3.2

1

0.54

54

0.96

4.14

Ex. Mg (cmolc kg−1)

0.2

2.2

0.9

0.37

41.11

0.76

3.77

Ex. K (cmolc kg−1)

0.3

4.5

1.5

0.74

49.33

0.59

3.65

Ex. Na (cmolc kg−1)

0

1.5

0.1

0.03

30

0.58

2.64

CEC (cmolc kg−1)

2.6

35.3

14.2

5.42

38.17

0.63

4.42

Ca:Mg

0.3

3.4

1.3

0.43

33.08

0.76

2.68

K:Mg

0.2

10.9

2.1

1.21

57.62

1.00

3.72

  1. Min minimum, Max maximum, SD standard deviation, CV coefficient of variation, EA exchangeable acidity, OC organic carbon, TN total nitrogen, Av. P available phosphorus, Ex. Ca exchangeable calcium, Ex. Mg exchangeable magnesium, Ex. K exchangeable potassium, Ex. Na exchangeable Na, CEC cation exchange capacity, Ca:Mg calcium to magnesium ratio, K:Mg potassium to magnesium ratio
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Agriculture & Food Security

ISSN: 2048-7010