I’ve forgotten loads as been 5 years since I had mine but I knew fresh chicken manure scorched plants but didn’t know other animals would , I assumed it would just make the weeds grow like hell, I always put mine on the ground over winter then dug it at spring but I’m sure when planting seed potatoes I put well rotted horse manure in the trench ??
I knew onions would keep fly off carrot if sown alongside them think marigolds I put along side salad greens and nasturtium would be along bottom of my plot where the fence line bordered the track as it was stonier there I didn’t grow much plus