Estimating Dissolved Reactive Phosphorus Concentration in Surface Runoff Water from Major Ontario Soils.

The article discusses the study which examines the degree of soil phosphorus saturation based on Mehlich-3 P tests and soil water extractable phosphorus (P) in predicting runoff P loss from agricultural soils in Ontario. It implies that P loss in surface runoff from agricultural lands can contribute to eutrophication of surface water using rainfall simulation. The researchers have recommended soil DPS-3 as an indicator of dissolved reactive P concentration in surface runoff water due to its insensitive and simple soil pH.