log (IRB number/g dry soil)

Source of variation

df

BOUAKE-189

ROK-5

F

p

F

p

Fertilization

2

10.190

<0.0001*

1.432

0.240^ns

Stage of plant growth

11

293.465

<0.0001*

303.055

<0.0001**

Fertilization* Stage of growth

22

2.296

0.001**

3.568

<0.0001**