Talk:Tutorial/Crops/@comment-88.101.210.104-20121022001408/@comment-5574324-20121022022121

A simpler way of saying it is that Air Quality pretty much only affects how fast things grow, or if they will be able to grow at all. If there are lots of blocks right next to your plants, Air Quality will be much lower, so plants will grow slower, or maybe not at all. Growth also depends on the other factors such as Fertilization and Hydration (and light, in most cases).

I'll try to reword it later when I have more time.