As far as the planting progress, here in northern Indiana it is all true. I have never seen it as wet as it has been this year. Normally the ground is saturated after the frost comes out in the spring, and it is really soft. This year the ground was that soft in May!! Our neighbor farms 2000 acres, and very little corn was planted as of 10 days ago. The rule of thumb is that planting after May 15 causes yields to drop for each day of delay. We have had a good 10 days, so planned corn plantings will not be switched to beans except for heavier ground (like muck). Bean planting is in full swing now, even before the corn planting is finished...
hh
Central Kansas is just now able to get in the fields because of wet and cold. Some of the guys are still trying to get in corn while others have gone to beans. Two things control the planting, one is dry enough to get in the field, and second is soil temperature. As long as the soil temp is too cold, the seed will just rot in the ground instead of germinating anyway.
No knee high by the 4th of July this year? :(