How do I get the dirt and smell out of my 03 Chev Cavalier

Ok, I work on a farm and I live in Wisconsin, it gets cold up here and I tend to start the car and blast the heater till it warms up, well anyway all this accumulates alot of high moisture corn dust and straw dust and such. Also I dont ride with a blanket on my seat so my seat is VERY AND I MEAN VERY dirty, I tried twice with a bissell cleaner and still could not get the dirt/stain/smell out of my seat, what should I do?

Go to the city salvage yard and get a clean seat. Then, you could use a spray on stain guard to keep it somewhat clean.