This was the feeding schedule from that site....
If however I use soil with nutrients pre-added then I use a schedule like this:
1 week(seedling) – Ph adjusted water
2 week(start of vegetative) – Ph adjusted water
3 week(vegetative) – Ph adjusted water
4 week(pre-flowering) – 1/2 veg nutes
5 week(first flowers) – 1/4 bloom nutes
6 week(flowering) – 1/2 bloom nutes
7 week(flowering) – 1/2 bloom nutes
8 week(flowering) – Ph adjusted water
9 week(flowering & harvest) – Ph adjusted water till harvest
No matter what the percentage is just make sure that Nitrogen (N) is available more than those other two elements. Autoflower cannabis also needs those secondary nutes and trace elements, but commercial fertilizers usually have a mix of them included in the nutrient solution. - See more at:
http://www.autoflowering-cannabis.com/autoflowering-cannabis-nutrients.html#sthash.IAssns8o.dpuf
These are the two nutrient schedules I use, but you can create your own schedule depending on the nutrient strength, soil and your strain but these will help you as a starting point.