Chelation in Relation to Iron Mobilization and Phosphate Availability in Soil

Department of Agricultural Chemistry and Soil Science, Faculty of Agriculture, University of Kalyani, West Bengal Manuscript received 5 May 1973; accepted 26 June 1973 A comparative study of iron mobilization and consequent release of phosphate by three pure chelating agents from two major types of West Bengal soils at different pH, has been carried out. Irrespective of the soils the order of chelating ability of pure compounds has been found to be succinic acid > phloroglucinol > glutamic acid in the major part of pH-range