Potential Benefits Associated with the Use of FGD Gypsum in Arkansas.

A series of studies have been conducted to assess the potential benefits of applications of Flue Gas Desulfurization Gypsum (FGDG) to agricultural lands in Arkansas. Surface runoff and erosion are responsible for losses of topsoil and agricultural productivity. The lack of organic matter and high silt content of many soils in Arkansas makes such soils prone to surface sealing, which in turn may impair the emergence of costly seed and reduce water infiltration. Additionally, the presence of a fragipan, in some of the state’s soil series, limits the volume of soil a plant root can scavenge for water and nutrients. The objective of this poster is to discuss the potential application of FGDG to address some of the issues previously described.