Ca₃(PO₄)₂

Fermento

Bone dust, bone black, or
Phosphorite with

Sulphuric acid, whereby the
Insoluble neutral calcium

Phosphate, ca3(po4)2, is changed
To the primary or acid

Calcium phosphate ca(h2po4)2,
Which is soluble and

Therefore available for the soil.

Composição: