Table 6: Relative change of soil salinity after application of compost and Gypsum.

Treatments

   

Dependent variables

     
 

Initial EC (mmho ms\cm)

Residual EC (mmho ms\cm)

Change in EC (%)

Initial ESP (%)

Residual ESP (%)

Change in ESP (%)

Initial Ex.ca+2 (meq\100g)

Residual Ex.ca+2 (meq\100g)

Change in ESP (%) Ex.ca+2 (meq\100g)

0 (control)

3.8

3.78

0.53

16.01

15.97

0.25

8.02

7.93

1.12

2.5t/ha compost

3.72

3.28

11.83

15.23

13.6

10.7

11

8.75

20.6

5t/ha compost

3.92

2.52

35.71

14.95

12.7

15.05

8.43

10.2

20.88

2t/ha Gypsum

4.11

1.9

53.77

20.35

6.87

66.24

10.3

17.6

70.57

4t/ha Gypsum

3.28

0.68

79.27

19.35

3.61

81.34

12.5

21

68.16

2.5t/ha compost+2t/ha Gypsum

4.3

1.7

60.47

18.35

4.55

75.2

10.2

17.8

74.51

2.5t/ha compost+4t/ha Gypsum

3.25

0.92

72.54

15.68

1.63

89.6

11.6

23

98.79

5t/ha compost+2t/ha Gypsum

3.37

1.65

53.78

19.36

4.52

76.65

11.6

17.9

54.58

5t/ha compost+4t/ha Gypsum

4.01

0.36

91.02

20.5

1.46

92.88

11.9

24.6

107.5

Source: Kasahun, et al. [6]