Other thoughts - learned from others
Nutricote is for the warmer climates.
I think it starts to release at 70 degrees, then 80, then 90 etc
That is soil temp.
Northern areas do not always get warm soil at the time the plants are starting to grow.
Osmicote is better for the north as is Plantone, manure, compost etc.
I know nothing about pellets.
I am also concerned about Milorganite but hear that it also helps deter deer. ???
I still believe there is nothing like lots and lots of farmer's gold!