Prowl H2O Herbicide
Me-Too-Lachlor II Herbicide - 2.5 Gallons (Replaces Dual II Magnum)
41% Gly Star® Plus Glyphosate
These herbicides I use for my soybeans are the same I use with corn I plant. I am fortunate that I get corn free from a farmer I know or I can what I need from a dealer that is one year old. I have never had issue with corn germination with the year old seed, sometimes two. For me there is no cost difference from soy to corn. I rotate corn, if I'm going to plant it anyways, after two years of beans. I do a soil test and amend every 4 years. IF one can get relatively cheap corn seed, use the above chemicals, have good soil and plant correctly, one will raise good corn and it will be as cheap as beans.
I rarely plant corn as I like soybeans for my plots and plan on planting beans in 3 of the plots I use year after year. The biggest negative of corn is that it takes some mechanical effort to get the residue broken down and ground ready for planting. Otherwise I just no till into beans with my planter.
I walk my plots to manually remove the gly resistant weeds that came up after the pres have lost there power. If one has the time and the plots arent run over with these type weeds then its a good way to go in my opinion.