Cone index for the three tillage treatments measured 6 weeks after subsoiling and chiseling before traffic (initial soil condition). sd, significant difference; ns, not significant (P < 0.01), Duncan’s multiple range test.
Cone index for the three tillage treatments measured 6 weeks after subsoiling and chiseling before traffic (initial soil condition). sd, significant difference; ns, notsignificant (P < 0.01), Duncan’s multiple range test.