Professionals use Milorganite for their lawn fertilizing. It is also a good deer-repellant to put on things like Hostas.
It doesn't smell good for a day or two, but it is slow-release (8 weeks), organic, and it cannot burn a lawn. Milwaukee has been producing it since 1925. It is, basically, made from the pee and poo of the population of the great city of Milwaukee. Big eaters and, one might suppose, big poopers.
People from there say they are from "Mwawkee" like people from NYC say they're from "Nyork" or, if from the boroughs, "Nyawk."
Here's the Milorganite site.