Phosphate rock fertilizer was studied in acidic soils using three methods to measure its dissolution. The amount of dissolved phosphate did not vary much between the methods. The dissolution of the phosphate rock continued over a 90-day period, with most of the applied phosphate being recovered in specific forms in the soils. The dissolution of the phosphate rock was similar in both soils, with more rock leading to less dissolution. This suggests that the phosphate rock could be a good alternative source of phosphorus in soils that are not deficient in it.