Hi Angelika.
I think as a general rule, animal manures that haven't been composted, as well as any amendment that is food for soil life but hasn't been inoculated with it, can cause a localised draw-down of biotic levels as those biota in the soil seek to colonise and convert the fertiliser.
I have been told repeatedly that nitrogen is lost in the composting process, and so the method in which you tuck your compostables under a layer of mulch (of which
Ruth Stout, I believe, was a proponent) is often suggested as a compost alternative, but I don't know how levels of nitrogen loss compare when you're talking about a hot compost as compared to a cooler compost that seeks to preserve and culture soil microbiota.
I may be mistaken, but isn't bone meal largely phosphorous? Wouldn't that mean that it gets composted every time? Also, I have used blood meal as an animal pest deterrent, in conjunction with
urine, applied directly to the soil surface, and haven't noticed any ill effect, but that might be my not seeing the bad.
I generally like to make up for the loss of nitrogen through cover cropping with green manures and growing them also as ground cover between my plants. I like all clovers except red (I
feed half of the chop to my Flemish Giant, and red clover is no good for her), and any time they get too large for what they're supposed to be succoring, I chop them down to the first few leaves on the plants. The root-zone die-off provides a cornucopia of goodness for the soil life, and it benefits all the soil around.
-CK
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein