Site

Crop type

C (g∙kg−1)

N (g∙kg−1)

C/N

C (Mg∙ha−1)

N (Mg∙ha−1)

Exchangeable bases (cmolc∙kg−1)

CEC

Ca++

Mg++

K+

WGCC

Maize

Coffee

20.6 ± 5.2a

44.6 ± 5.2b

1.8 ± 0.4a

4.4 ± 0.5b

11.4 ± 0.9a

10.1 ± 0.7a

58.9 ± 12.6a

109.5 ± 11.9b

5.2 ± 0.9a

10.9 ± 1.0b

10.9 ± 1.3a

16.5 ± 3.7a

5.9 ± 0.9a

3.6 ± 0.4a

0.6 ± 0.2a

1.8 ± 1.1a

20.1 ± 2.1a

28.8 ± 2.3b

Gotu

Maize

Khat

30.2 ± 0.9a

32.6 ± 8.0a

2.8 ± 0.2a

3.1 ± 0.7a

11.4 ± 0.7a

10.5 ± 0.5a

74.2 ± 0.6a

79.1 ± 17.2a

6.9 ± 0.5a

7.5 ± 1.5b

14.6 ± 1.1a

16.9 ± 1.2a

2.8 ± 0.4a

5.1 ± 0.6b

0.6 ± 0.1a

1.8 ± 0.5b

19.2 ± 1.5a

24.5 ± 1.6a

Finance

Maize

Coffee

Sugarcane

15.1 ± 1.6a

40.2 ± 1.2b

20.1 ± 0.8a

1.3 ± 0.1a

3.4 ± 0.2b

1.8 ± 0.2a

11.6 ± 0.7a

11.8 ± 0.9a

10.6 ± 0.6a

43.5 ± 4.8a

97.9 ± 6.7b

58.5 ± 6.4a

3.7 ± 0.3a

8.5 ± 0.5b

5.4 ± 0.6a

8.8 ± 1.2a

16.4 ± 1.4b

14.2 ± 0.8b

3.9 ± 0.6a

4.4 ± 0.7a

3.0 ± 0.8a

3.9 ± 0.6a

3.0 ± 0.8a

1.0 ± 0.1b

15.8 ± 1.2a

27.1 ± 4.9b

19.1 ± 1.1a

Chaffee

Maize

Khat

Sugarcane

24.7 ± 1.4a

26.7 ± 4.1a

20.7 ± 0.6a

2.3 ± 0.2a

1.7 ± 0.5a

2.0 ± 0.3a

10.7 ± 0.6a

10.4 ± 1.0a

11.4 ± 1.7a

62.5 ± 3.1a

65.1 ± 10.4a

56.1 ± 2.7a

5.9 ± 0.4a 5.5 ± 0.4a

5.3 ± 0.8a

13.6 ± 1.0a

11.8 ± 0.6a

13.3 ± 0.1a

4.0 ± 0.8a

4.2 ± 1.5a

5.3 ± 2.0a

1.0 ± 0.1a

1.1 ± 0.1a

0.7 ± 0.1b

22.4 ± 1.1a

26.4 ± 2.4a

24.3 ± 2.1a