Method

Soil layer (cm)

MAE

MAE%

RMSE

RMSE%

E

RPD

IDW

0 - 20

2.46

9.13

2.92

10.59

0.8873

9.64

20 - 40

2.23

10.18

2.85

13.00

0.9075

8.01

40 - 60

1.58

11.11

3.12

12.82

0.8483

8.17

60 - 80

1.80

7.14

2.40

9.52

0.9010

11.23

OK

0 - 20

2.34

8.49

2.99

10.85

0.8857

9.44

20 - 40

2.47

11.28

2.99

13.66

0.8720

7.83

40 - 60

1.82

9.97

2.90

11.90

0.8744

8.52

60 - 80

1.92

7.64

2.41

9.55

0.8822

10.88