GrowCNanswered grow question 3 years ago I bet the North Koreans peasants poop in their pots (night soil) to fertilize their ganja. But, I'm quite certain that supreme leader's weed is grown with more balanced fertilizer.
You can use almost anything. After all, it's called "weed" for a reason and Milorganite is 5-2-0 fertilizer. Not a "complete" fertilizer so you'll have to make up the other nutrients to create something more balanced. Keep in mind lawn fertilizer, especially for use in spring is heavy on nitrogen and not much else. You might find use for it during veg but you'll need to add other nutrients and then largely abandon it or dramatically reduce it's use during flower. In my mind a lot of extra work when you can inexpensively buy something much better.
I personally do not have a desire to try "stuff". I can use the bulk fertilizer I get from the local fertilizer plant by the ton if I want to save some money. But, when there are so many purpose made fertilizers optimized for this/similar crop you have to ask why? Are you experimenting? Trying to save money?