I don't get this whole fertilizer crunch thing. If you look at the price of Osmocote on Amazon, it's basically not much different than it's always been:
https://camelcamelcamel.com/product/B00GTDGMHC
So basically the cost of enough fertilizer to feed an entire family for a year has gone up by, what, $20? $100?
And that's at retail prices; the cost (and cost increase) would obviously be much smaller when purchased in bulk. And that's also for the name brand product, obviously generics are much cheaper.
I'm not a farmer but I did fertilize ~20 fruit trees with weekend with Plant-tone, Peters 20-20-20, Garden Lime, and Fish & Kelp. My cost of doing that for the entire year will be maybe $60, and that's only because I'm trying to maximize fruit quality and tree health rather than minimize costs.