I had a soil test done on my vegetable garden at the University of
Wsconsin Extension. The results stated that I need to add .30 lbs/sq
ft of Nitrogen, no additional Phosphates, and to add .2 lbs/sq ft of
potash.

To do this they say
"Nitrogen: Apply .4 lbs of regular (high N) turf fertilizer per 100
sq ft to meet plant nitrogen needs" and
"Potash: Apply 1.0 lbs of winterizer turf fertilizer per 100 sq ft to
meet plant potash needs".

I am trying to translate this into what I should purchase and am left
more than a little cold. Any suggestions on how this might translate
will be appreciated.

BTW, my garder is ~ 299 sq ft and the main crop is paste tomatoes.