اصل بول
ENترجمہ ابھی دستیاب نہیں۔ اصل بول دکھائے جا رہے ہیں۔
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.
