Bone meal is well suited for

Bone meal is well suited for Acidic soil.
Bone meal is a mixture of finely and coarsely ground animal bones and slaughter-house waste products. It is used as a dietary supplement to supply calcium (Ca) and phosphorus (P) to monogastric livestock in the form of hydroxiapathite.
Bone meal fertilizer only works in acidic soil. It's best to only consider this compound if your soil's pH is 7.0 or below.