Sounds good, I will take note not to apply too much. I have learned (from this site) that soil too nutrient rich can be a problem. I mistakenly assumed that improving the soil to a very high level was the trick to producing good fruit.
Now I occaisionally fertilize my trees and they grow very slow but I am sure our cold zone plays into that. If I put the manure under the trees ( they have not all fruited yet) I will make sure no fertilizer is applied in the spring unless the tree tells me it needs something.