Bazaars will only buy food from a storage yard if that type of food is being imported. I don't know if grain can be imported in Djedu. If it can, you could open the appropriate trade route and set grain to "import". If you don't really need to import any grain, set it to "Import to maintain 0".
If grain can't be imported, you need to move it to the granaries. Set the granaries to "Get" grain. You might want to consider setting the storage yards to "Not Accept" (or "Empty") grain.
(Edit)
I see GQ beat me to it. Must work on my typing skills.
[This message has been edited by Nero Would (edited 02-08-2004 @ 10:19 AM).]