208 By-Product Gypsum: Beneficial Uses in Agriculture: I

Oral Session
ASA Section: Environmental Quality
Gypsum produced as a by-product of coal combustion is a low cost resource that has many beneficial uses in agriculture. The goal of this session is to highlight research that documents these benefits, assesses potential environmental impacts, and identifies new uses for by-product gypsum in agriculture.

By-product Gypsum Uses in Agriculture Community
Adaptive Nutrient Management Community

Tuesday, November 5, 2013: 10:00 AM-11:35 AM
Marriott Tampa Waterside, Room 11

Community Leader:
Ray B. Bryant
Ray B. Bryant
Arthur L. Allen
10:00 AM
Introductory Remarks
10:05 AM
Effects of Using Waste Gypsum Wallboard On Composting Dynamics and Chemical Parameters.
Chris Richards, Dalhousie University; Gordon W. Price, Dalhousie University
10:20 AM
Use of Phosphogypsum in Brazilian Agriculture.
Luis Ignacio Prochnow, International Plant Nutrition Institute Americas Group; Valter Casarin, IPNI Brazil; Eros Artur Francisco, International Plant Nutrition Institute (IPNI)
10:35 AM
Use of Gypsum As a Soil Ameliorant for Improved Crop Growth in An Acid Soil.
Malcolm Sumner, University of Georgia; Emily A. Carter, USDA Forest Service (FS); David E. Radcliffe, University of Georgia-Athens; Hamid Shahandeh, Texas Agrilife Research
10:50 AM
FGD Gypsum Application: Impacts On Soil P From City Parks in the Tampa Area.
H. Allen Torbert, USDA-ARS; Dexter B. Watts, USDA-ARS
11:05 AM
Water Soluble P From Poultry Litter and Flue Gas Desulfurization Gypsum Amended Hay Field in Watkinsville GA.
Dinku Endale, USDA-ARS; Harry H. Schomberg, USDA-ARS; Dwight Fisher, USDA ARS; Dorcas H. Franklin, UGA; Michael B. Jenkins, USDA-ARS
11:20 AM
Surface Application of Flue Gas Desulfurization Gypsum and Infiltration Rates in a Coastal Plain Soil.
Loretta M. Collins, University of Maryland; Gary K. Felton, University of Maryland; Ray B. Bryant, USDA-ARS; Brian A. Needelman, University of Maryland; Arthur L. Allen, University of Maryland-Eastern Shore
11:35 AM