Examples from the Web for phosphoric
Those rich in phosphoric acid and potash are usually most needed, but sometimes nitrogen also is necessary.Clovers and How to Grow Them|Thomas Shaw
Pure bones are thus seen to contain about 29 per cent of phosphoric acid and 6-1/4 per cent of nitrogen.
In it, for every 142 parts of phosphoric acid, there are only 56 parts of lime.
Reference has been made to the fact that magnesium sulphate may probably not only fix the ammonia, but the phosphoric acid.
Two of these plant foods, namely, phosphoric acid and potash, are minerals.Agriculture for Beginners|Charles William Burkett
British Dictionary definitions for phosphoric
Word Origin and History for phosphoric
1784, from French phosphorique, from phosphore (see phosphorous). Related: Phosphorical (1753).