Non-standardized coefficient

Standardized Coefficient

t

p

VIF

R²

Adjust R²

F

B

Standard error

Beta

Constant

3.722

3.203

-

1.162

0.298

-

0.914

−0.595

F(4, 5) = 8.361, p = 0.040

pH 1 (<5.5)

−0.035

0.162

−0.165

−0.216

0.838

3.295

pH 2 (5.5 - 6.5)

−0.093

0.351

−0.382

−0.266

0.801

11.616

pH 3 (6.5 - 7.5)

0.062

0.122

0.436

0.512

0.630

4.096

pH 4 (7.5 - 8.4)

0.091

0.385

0.359

0.238

0.822

12.852