I don't know too much about the soil/fert, I just got some good topsoil and tomatoe fert, I do know that you want around 20-20-20(this also depends on what stages of the grow you're at).

About the pesticides...just get something that says safe for fruits/vegetables. And remember, anything you add to your plant/soil(fert, soil, chemicals, pesticides) that you're worried about tasting or smoking after the harvest and everything, just stop giving it to the plant 1-2 weeks before harvest.