ANION EXCHANGE RESIN AS A MEANS OF ASSESSING SOIL PHOSPHATE STATUS

Abstract
Details of a laboratory technique for assessing soil phosphate status by means of an anion exchange resin are presented. The method is applicable to large scale advisory work and is theoretically well founded. The technique does not induce major changes in the chemical constituion of the soil and attack on unavailable phosphate is avoided. Results reflect both the capacity and the intensity/kinetic components of phosphate status. Soil type effects are minimized.