Hi,

The easiest thing to do to add nitrogen is scatter blood meal on your raised beds. The nitrogen level in blood meal (first number on the bag) is generally 12-0-0. That will give your veggies the nitrogen they need. Scatter the blood meal by hand and dig it into the top six inches of soil.

You will find 0-0-60 potash fertilizers in garden centers. (Finding the exact proportion of a fertilizer with 0-0-40 is going to be very difficult, I didn't find any online.) The fertilizer will be dry. Scatter that by hand and mix it into the soil as you did the blood meal.

You don't need to worry about burning plants by digging blood meal into the soil but plants can be burned with too much potash (potassium).

This sheet from Cornell University will help with the potash/potassium question. Note your soil test said potash is low. Cornell recommends applying five ounces of the 0-0-60 product to a 100-square-foot area.

https://ccetompkins.org/resources/getting-the-most-out-of-your-vegetable-garden-soil-test-report

I hope this helps! Good luck.