I just hooked on to an old Graham 11 shank chisel plow and tried ripping some ground a couple days ago. I am going about 8 to 12 inches deep and its leaving a big hard lump of untouched soil between each shank. Is this normal for chisel plows? Any ideas on how to fix this without chiseling the ground twice? Would a pass with the field cultivator take out the hard lump left behind between each shank? I believe the ground to be pretty badly compacted and would like to avoid three passes through each field if at all possible.
P.S. I also tried working the ground diagonal against the grain of the field and nothing changed.
P.S. I also tried working the ground diagonal against the grain of the field and nothing changed.