I have been gardening this block for 5 years, not an enormous time, but I don’t use animal products to fertilise I just use compost/mulching/weed tea/and cover crops.
Everything seems fine. Yet every gardening show or whatever will be like “slather that manure and blood and bone on each year, use fish emulsion, fucking sacrifice your firstborn on that shit”. Am I an idiot or do you just not need to do any of that?
edit: not looking for the peanut gallery. Interested in opinions from people who don’t use animal products and what their experience has been.
You could try with some (treated) urine to get some extra potassium into the soil. In combination with terra-preta charcoal for nutrient storage it can really help soil fertility.
But you are probably lucky and have good soil for which compost and mulch is sufficient.