Posted 5/16/2021 13:38 (#9008250 - in reply to #9008115) Subject: RE: Why are Corn Yields so poor in the Mississippi Delta?
SE Nebraska
From what I could find there is roughly 27.5 million acres of impermeable surface in the continental us. So rooftops and roadways. That's alot of runoff. This is also 20 year old data, I couldn't find more current data.