Station

(WIEL)

Depth (cm)

Volume of 0.02M EDTA (X)

X-Blank

Ca²⁺ + Mg²⁺ conc.

Mg²⁺ conc.

Cmol/Kg soil

1^st trial

2^nd trial

Mean ± 0.01

1

0 - 5

3.00

3.00

3.00

2.70

4.32

3.04

1

5 - 10

2.50

2.40

2.45

2.15

3.36

2.24

2

0 - 5

2.50

2.60

2.55

2.25

3.52

2.56

2

5 - 10

2.40

2.30

2.35

2.05

3.28

2.64

3

0 - 5

2.90

2.90

2.90

2.60

4.16

3.04

3

5 - 10

2.60

2.60

2.60

2.30

3.68

2.72

4

0 - 5

2.40

2.50

2.45

2.15

3.36

2.72

4

5 - 10

2.00

2.10

2.05

1.75

2.96

2.32

5

0 - 5

3.40

3.30

3.35

3.05

4.96

3.52

5

5 - 10

3.00

3.00

3.00

2.70

4.32

3.04

6

0 - 5

2.90

2.90

2.90

2.60

4.16

2.88

6

5 - 10

2.40

2.50

2.45

2.15

3.36

2.48

Blank

0.30

0.30

0.30

-

-

-