The soil mosture is what I would call ideal for germination, nice and moist but far from wet.

I guess the one thing that puzzles me is that we've had a 10 deg c soil temp before and never had a problem. 

My concern is how do you manage the ones that come up three weeks later in my replant. We are in a marginal yield area for corn (60bu/acre avg.) I guess I just take out the emerged ones at the end of the week and put up with the extra's later (mind you there isn't a lot of them that are going to come up).

Thanks for your replies guys.

Jim