A review of procedures for evaluation of bioavailable phosphorus in particulate materials / by Tatiana Mayer. : En13-5/85-105E-PDF

"Phosphorus control, programs instituted. in the early 70's have resulted in lower P concentrations in the waters of Lake Erie and Ontario. lmproved trophic conditions are new indicated by shifts in algal species populations. Eutrophication-related problems, however,still exist in local nearshore areas. It has been well documented that particulate materials such as sediments and eroded soils contribute significantly to total phosphorus loading. Thus, evaluation of bioavailable phosphorus from these sources is of paramount importance. The objective of this report is to summarize the information on the use of chemical extractions for estimating particulate phosphorus available for aquatic plant growth. In particular, the utility of the citrate-dithionite-bicarbonate (CDB) extraction for measuring the bioavailable particulate phosphorus is evaluated. Based on the compiled information, the selection of a suitable procedure for the estimation of bioavailable P can be made`"--Management perspective.

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