Table 3 Physicochemical properties of the soil at the experimental sites at Holetta, red nitosol and Ginchi clay vertisol before planting and after harvesting

pH (1:1 H₂O)

5.43

5.61

6.20

6.23

5.49

5.59

6.23

6.25

Total OC (%)^a

2.37

2.23

1.31

1.26

2.41

2.06

1.37

1.35

Total N (%)

0.21

0.20

0.09

0.08

0.22

0.20

0.09

0.08

Available P (ppm)^b

5.40

4.67

11.60

9.60

7.13

5.60

13.73

13.70

CEC (meg/100 g)

26.07

25.53

49.94

43.45

25.82

25.17

49.62

49.55

Sand (%)

13.33

13.75

15.83

15.83

15.83

15.83

17.08

15.00

Silt (%)

26.25

24.58

15.42

15.42

26.25

24.17

14.17

17.08

Clay (%)

60.42

63.33

68.75

68.75

57.92

60.00

68.75

67.92

Textural class

Clay

Clay

Clay

Clay

Clay

Clay

Clay

Clay