Extraction of phosphorus from the major soils of Cyprus with water or bicarbonate

Summary Phosphorus was extracted from the five major types of Cyprus soils, ranging in CaCO₃ content from 0 to 71%, using the Pw and the bicarbonate method. With three of these soils the two methods gave identical index values. However, bicarbonate extracted more P from the highly calcareous soil and less P from the igneous soil relative to the Pw method.Reproducibility of both methods was found satisfactory.