why are you bashing me so hard? i laid out all the options for him, and i too have a very old bag of scotts premium potting soil. it was a great bag of potting soil! minimal nutes .07 - .01 - .03 and it came with peat moss and perlite. i also had an old terrible bag of hyponex (same company), which turned into mud when i used it.
i dont use any feed. i compost once before sowing and once again going into flower with an all purpose compost.
you can use organic feed.
or you can use chemical feed. this route (youll have the most problems with. when the minerals and salts finally do buildup, which will be close to flower, your the plant will die off, and people will always wonder why)
for my first plant i actually used chemical feed, and it made my plant glow unnaturally like it was radioactive or something. this picture is mine when i was learning how to grow, and the plant died becuase of terrible conditions. it was getting fed chemicals, it was getting watered too much, it went through hurricane sandy with no power for a week, and then i put it in a small closet with no ventilation and the temperature reached ~100f
its his choice. if you read my message again, i said that almost all companies dump into mother earth, but when your main profit is pesticide, you need to be very careful about it, and they are the opposite of that.
http://www.espoma.com/ a nj based company is very eco friendly, makes great soil, great fertlizers, and have a great educational how to grow video! there are companies out there that favor life as much as they favor their profit.
i laid out many options, theres no reason for you to bash me
OH and i forgot to mention, organic or synthetic, fertlizers will make the ph of the soil acidic ~5 due to buffers