"Maize" is preferred in formal and scientific usage because it refers specifically to this one grain, unlike "corn", which has a complex variety of meanings that vary by context and geographic region. However, in bulk-trading, people use "corn" only to refer to maize."
It's been fun, folks. But when the umpire openly declares support for one team on the field - and also decides to publicly play fast, loose, & coy with the batting score as a manifestation of that support - it's time to move on. I wish nothing but the best for you all, friend & foe alike. Take care, stay cool, and drink one for me every once in a while. You folks are the best.