Sprayer Tip?

[talley2191]

Adding a boom to my 25 G spreader and plan to mount it on the back of my poly JD wagon. If I was to mount the boom to the back of the wagon (assuming about 24" elevation) using a two nozzle configuration, what degree nozzle should I select? I am assuming a flat nozzle, but I guess maybe something else?

 

[talley2191]

And now as I read a bit more, I see a product from TeeJet (SJ-7 Fertilizer Nozzles) that applies liquid fertilizer through 7 holes in a nozzle. Is that the best way to apply liquid fertilizer?