Table 1 Physical and chemical characterization of the soils. Abbreviations: S, soil samples without detergent; SDet, soil samples with detergents; EC, electrical conductivity; m ± s.d., mean plus or minus standard deviation

28.4

24.4

38.4

30.4 ± 7.2

46.4

32.4

54.4

44.4 ± 11.1

26.7

44.7

52.7

41.3 ± 13.3

30.7

52.7

38.7

40.7 ± 11.1

44.8

30.8

8.8

28.2 ± 18.1

22.8

14.8

6.8

14.8 ± 8

6.8

13.0

3.1

7.7 ± 4.9

9.0

42.5

26.6

26.0 ± 16.7

78.3

81.2

83.6

81.0 ± 2.6

73.6

76.4

64.5

71.5 ± 6.2

8.0

7.9

8.1

8.0 ± 0.0

8.3

7.7

8.9

8.3 ± 0.6

3.8

41.4

19.5

21.5 ± 18.8

42.8

40.2

44.4

42.5 ± 2.1

0.69

0.76

0.32

0.59 ± 0.23

0.66

0.82

0.42

0.63 ± 0.2

2.3

3.8

1.5

2.5 ± 1.2

16.4

21.1

11.7

16.4 ± 4.71

0.43

0.38

0.29

0.36 ± 0.07

1.19

2.26

1.03

1.49 ± 0.66

0.36

0.38

0.28

0.34 ± 0.05

0.82

2.68

1.00

1.5 ± 1.02

11.0

13.9

13.7

12.9 ± 1.6

8.9

10.0

6.7

8.5 ± 1.7