My corn is skimpy this year as well, it was the only thing I didn't plant in containers and it's showing, too much weed competition... Going to address that better next year... Over 1000 seeds planted only about half germinated and survived, the only corn that is showing any real promise is the indian corn I planted for the kids, but even that is only about 4 feet tall and has small ears...
Peas, beans, lettuce and radishes are done for the summer harvest, planted a 2nd round for fall...
My melons all went in late but are taking off like wildfire... I was working a new area for them away from everything else so they had room to roam, and simply didn't get it done in time, going to have to see what develops before frost hits...