Curing fire temperature

How long should the curing fires burn each day, and what should the temperature be for each fire?

I found this guide:
Day 1 - 300°F for 6 hours or more
Day 2 - 350°F for 6 hours or more
Day 3 - 400°F for 6 hours
Day 4 - 450°F for 6 hours
Day 5 - 500°F for 6 hours
Day 6 - 550°F for 6 hours

thanks

Are those the correct temperatures?