Kush "Master" A bag of mater can be called "organic" and have almost anything in it. I stay away from Kellog's my self because:
#1: malorganite (city sewer sludge) is used in alot of their products. Lots of unwanted chems. in sewer sludge.
#2: they don't tell you what is in it!
#3: Better products out there. Look for Farmer' s brand
I use dolomite lime throughout my grow (except the last month of flower) and add about a teaspoon per gal (or more) of soil to start. Dolomite Lime is a pot growers friend. I have very bio-dynamic soil that can turn acid very easily, lime keeps it stableized.