Kybuckhunter,
"If you can "flood" a deers nose with a stronger scent how can a buck trail a doe across a picked corn field?"

Well... the does gives off pheramones which the buck can smell and taste in the air,
this is why you might have observed a buck sniffing the air and licking his nose
when he is checking does in a field.
kinda the same as you smelling your wifes perfume in a crowded store after she has
walked around a rack of clothes.(new clothes have a definate strong smell also right?)
that's why we use doe pee as a atractant ,not cow or goat ect.

It's just something that he is a custom to,like the smell of corn,dirt,leaves ect.....
The same goes for rubs, scrapes,ect.
Only those are glandular scents and are often refreshed daily.
That is why it is best hunting those areas after a rain,they go back to those to re-apply scent to them.
Deer can process many different scents ,danger scents,common scents(dirt,leaves,food)
glandular,and hormonal are the most highly tuned of all!
That is why I stress the importance of scent wash products,to eliminateMOST of your human scent as possible,then adding a more domanant common scent.
The End.