Soil parameters

Mean

Std. Dev.

Min

Max

Range in SW Uganda

pH

5.98

0.93

0.39

7.04

4.62 - 8.48

N (%)

0.24

0.74

0.07

6.09

0.05 - 0.38

SOM (%)

3.07

1.66

1.12

12.70

1.85 - 8.46

P (ppm)

20.42

27.07

3.35

106

0.84 - 2140

K (ppm)

0.34

0.21

0.06

1.12

51.60 - 5030

Ca (ppm)

2.58

1.83

0.46

12.4

220 - 6840

Na (ppm)

0.10

0.20

0.01

1.58

0.60 - 210

Sand (%)

64.00

9.43

38

86

11.84 - 74.40

Clay (%)

21.97

7.38

4

38

14.32 - 69.60

Silt (%)

14.03

6.02

1

33

8.56 - 25.28