I'm in south-central Missouri and have already planted some corn. Of course,
the day after planting, the forecast changed to include one night with a low
of 31 degrees, that will happen just about the time the corn is sprouting.
Will this hurt it? If so, would it help to cover the plot with black plastic
that night?

Also, I tried growing watermelons for the first time last year, and they did
rather poorly, in that the fruits were much smaller than normal (delicious,
though). They got enough water, so it must be something missing in my soil.
Anyone got any ideas?