wrong bag of dirt by what you posted.
I believe MGOPM has ferts added.
Miracle Gro Organic Choice Potting Mix is the bagged product I use.
MGOCPM (potting mix) contains soil and a large portion of organic material (55-65% by volume). Sphagnum peat moss, composted bark fines, leaves, twigs, wood chips etc. and "pasteurized poultry litter" (cooked chicken crap).
http://www.scotts.com/smg/products/M...PottingMix.pdf
Several tanks going with the oldest >3yrs wet.