Pm

Pm-3

WPm

WTm

df

r2 Model

Freq-ha

Parameter estimated

−1.59

0.31

0.26

1.29

4. 68

0.1736

SE

0.45

0.14

0.13

3.98

t

−3.53

2.18

−2.04

0.32

p-level

0.0007

0.0329

0.0453

0.7474

Prod-ha

Parameter estimated

−9.72

2.04

1.27

−12.17

4. 68

0.2051

SE

2.47

0.78

0.7

21.77

t

−3.94

2.6

−1.8

−0.56

p-level

0.0002

0.0113

0.0756

0.5780