Why is my corn laying over on the job?

The corn in my patch and others around here in the Midlands of SC is falling over after getting to be a few inches tall....What's up with that?

too wet, or not planted deep enough ?

leaves streaky?

Rain here has been a bit under normal level fore this time of year. Corn gets to be about 6 inches tall and looks healty most of the time, sometimes gets a little dead or brown color at the very top and the next day it is like the leaning tower of Piza. Never seen anything like it before. The seed is a sweet corn non-hybrid purchased from a seed supplier in NC. I cant get them to respond to my calls. I have also had only a 45 % gemination rate so far. Many of my neighbors have 1 foot high corn planted about the same time as mine.

I don't know much about corn, but I did read that too much nitrogen in the soil can cause it to fall over. I think it's to do with the plants not having to make a big root system to get enough. Then again, I was under the impression that its a pretty heavy feeder, so I don't know how much is too much.

B Wizzard, Hi neighbor! I am in Sumter, where in Midlands SC are you?

Rootworm?