Examples from the Web for phosphatic
Guano must be regarded as a nitrogenous and phosphatic manure, as the quantity of potash it generally contains is small.
Sour fruits, as Currants or green Gooseberries, may be useful in phosphatic cases; but ripe fruits have an opposite tendency.
The phosphatic slag from this process is used as fertilizer.The Economic Aspect of Geology|C. K. Leith
For cereals it may be well supplemented by nitrogenous manures, while for roots it may be well supplemented by phosphatic manures.
Acids dissolve a phosphatic, and Alkalies or their carbonates a lithic deposit, in the body, as well as out of it.