I think this sentence in the strategy section of the article on Turrets is wrong: "On Summoner's Rift, melee minions usually die to two turret attacks and one champion auto attack, and ranged minions usually die to one turret attack and two champion auto attacks". That only happens in the early game, when the damage of autos is very low. In the mid game one turret hit and one auto is normally enough to kill a ranged minions. And in the late game you kill them with a single auto.
By the way, not sure if this is the best place for this topic, but AFAIK this wiki doesn't have a talk page for each article, like Wikipedia. It would be nice to have that and be able to discuss each article in a dedicated talk page.