You sill didn't say if tractor wheels are adjustable (front and rear) and although i can easily look it up I'm not going to.
Assuming all 4 wheels are welded on tractor.. Adjust planter for 30" center to center of seedbed. Set 2 cultivator sweep plows to run dead center of rear tires and 1 sweep to run dead center pf first 2. Add additional plow points according to point wing spread.
If wheels aren't welded on AND have no spin-out adjustment,here's what I have done on accasion. Remove and switch L to R and vs vs. Or spin wheel 180* so that recess changes center to center width. Measure and set planter and cultivator as above. Corn has a hard time with polination. Plant somewhat in a square rather than a few long rows. In addition to controling weeds,pull dirt up around plants when prop roots begin appearing.
You didn't ask but since this is corn. 36" row is better than 30 for neutrant and moisture. Corn sucks up a lot and responds very well to nitrogen.
Fertilize with a 16-16-8 liquid fertilizer when the corn plants have reached a height of 4 inches, but before it reaches 8 inches tall.
Fertilize again when they are about 10 inches tall. This is best done by side-dressing, rather than applying fertilizer directly on the young plants
When sweet corn ears begin producing silk, hit it one last time with 46-0-0 nitrogen fertilizer according to product application directions.
If you have the means,irrigate after first and last application. j
Coons will buy bus tickets if they can't walk to the patch just as ears are coming into milk. Seriously,the devils don't come nip and nibble every night like deer and rabbits. At the peak of production you walk through admiring all those robust ears and tell tell the family what a fine hearvest is in store,,,,,,,look out next morning and

#@&*$# the whole patch is laying on the ground.