Parameters

Hoerl function

K^os

a

b

c

R²

Ks = a

SAR

5 meq salts/l

0

11.6

11.91

0.928

0.976

1.0

11.915

5

8.5

9.209

0.838

1.137

1.0

9.209

10

6.5

6.864

0.842

1.214

1.0

6.864

30

4.08

4.224

0.864

1.208

1.0

4.224

50

2.75

2.936

0.853

1.145

1.0

2.936

∞

1.3

1.355

0.900

0.983

1.0

1.355

Regression for the relation K^os vs a is Y = 1.04x + 0.0642; R² = 0.9981

SAR

50 meq salts/l

0

21.43

21.542

0.970

1.003

1.0

21.542

5

13.36

13.611

0.929

1.076

1.0

13.611

10

8.852

9.275

0.870

1.144

1.0

9.275

30

6.617

6.900

0.894

1.056

1.0

6.900

50

4.799

5.065

0.866

1.125

1.0

5.065

∞

2.747

2.784

0.906

1.117

0.999

2.784

Regression for the relation K^os vs a is Y = 0.998x + 0.248; R² = 0.9996