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Table 1 Soil analysis of experimental sites before sowing

From: Indigenous rhizobia population influences the effectiveness of Rhizobium inoculation and need of inorganic N for common bean (Phaseolus vulgaris L.) production in eastern Ethiopia

Soil properties

Hirna soil

Babillae soil

Haramaya soil

Fedis soil

pH in H2O

7.25

6.66

7.84

7.76

EC (mS/cm)

0.06

0.04

0.14

0.06

Organic carbon (%)

1.65

0.56

1.96

1.32

Total nitrogen (%)

0.16

0.06

0.12

0.12

Available P (mg kg−1)

27.11

2.22

9.94

1.78

Ca (cmol(+)kg−1)

39.88

4.18

31

23.12

Mg (cmol(+)kg−1)

9.00

3.5

8.7

12.87

Na (cmol(+)kg−1)

0.14

0.15

0.33

0.12

K (cmol(+)kg−1)

0.80

0.34

0.14

1.09

CEC (cmol(+)kg−1)

40.03

6.59

25.98

32.22

Zn (mg kg−1)

0.95

0.26

0.11

0.10

B (mg kg−1)

0.83

ND

0.15

0.75

NH4-N (mg kg−1)

33.77

25.57

–

20.10

NO3-N (mg kg−1)

33.74

27.98

–

27.75

Clay (g kg−1)

49

18

33

36

Silt (g kg−1)

39

6

18

45

Sand (g kg−1)

12

79

49

19

Textural class

Clay

Sandy loam

Sandy clay loam

Silty clay loam

Number of indigenous rhizobia of common bean g−1 soil

1.1 × 104

<10

2.8 × 103

2.5 × 102