Soil property

Harvest frequency

0 - 10 cm depth

10 - 20 cm depth

PL^†

CF^†

PL

CF

Cu (kg∙ha⁻¹)

1

2.9 a^*

2.0 c

1.0 d

0.9 de

2

2.5 b

2.01 c

1.0 de

0.8 e

EC (dS∙m⁻¹)

1

0.081 a^*

0.067 b

0.059 c

0.059 c

2

0.068 b

0.067 b

0.060 bc

0.055 c