I've had problems with my first planting of sweet corn this year. We've had
close to 20 inches of rain the last two months. I fixed the corn by side
dressing with aged chicken litter. Side dressed on top of the ground next
to the plants, then with a push plow, hill dirt over the litter. The corn
turned green, and grew almost three feet in three weeks and is setting ears
now.

good luck............