From the fertilizer recommendations, it looks like you'll need 1 lb. of P for the front and back lawn; 1 lb of K for the front and 3 lbs of K for the back.
You can do a 1 lb of actual nutrient / 1k sq. ft. by applying a balanced fertilizer (10-10-10, 13-13-13, similar) in the beginning of the growing season. Then use SOP (0-0-50) or MOP (0-0-60), SOP preferred, to meet the additional 2 lbs of K per 1k sq ft for the back. And apply a nitrogen as needed.
I'm not sure how the indexes translate to ppm for this particular lab. Others might have an idea.
Bumping for other recommendations.
Below is a great thread for soil amendments.
https://thelawnforum.com/viewtopic.php?f=24&t=15165
Just FYI, I'm not a huge fan of NC's soil testing as they don't give you a whole lot of info. I really like Waypoint soil tests and the info they provide.
Something I recently learned, if you click download data on the PALS website it will give you a little more info in excel. Calcium & magnesium percent will be shown in the standard template option. Ca, Mg P & K ppm is available if you select customize output option. I do wish they would include iron results.
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