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ARS Home » Southeast Area » Auburn, Alabama » Soil Dynamics Research » Research » Publications at this Location » Publication #378947

Research Project: Enhancing Production and Ecosystem Services of Horticultural and Agricultural Systems in the Southeastern United States

Location: Soil Dynamics Research

Title: Effect of cover crops and crop rotation on physical properties of soils amended with flue gas desulfurization gypsum

Author
item SHEDEKAR, VINAYAK - THE OHIO STATE UNIVERSITY
item ISLAM, KHANDAKAR - THE OHIO STATE UNIVERSITY
item Fausey, Norman - Norm
item Watts, Dexter
item Gonzalez, Javier
item DICK, WARREN - THE OHIO STATE UNIVERSITY
item VANTOAI, TARA
item Flanagan, Dennis
item BATTE, MARV - UNIVERSITY OF KENTUCKY
item REEDER, RANDALL - THE OHIO STATE UNIVERSITY

Submitted to: American Society of Agronomy Meetings
Publication Type: Abstract Only
Publication Acceptance Date: 11/10/2019
Publication Date: 11/10/2019
Citation: Shedekar, V.S., Islam, K.R., Fausey, N.R., Watts, D.B., Gonzalez, J.M., Dick, W.A., Vantoai, T.T., Flanagan, D.C., Batte, M., Reeder, R. 2019. Effect of cover crops and crop rotation on physical properties of soils amended with flue gas desulfurization gypsum [abstract]. American Society of Agronomy Meetings. CD ROM.

Interpretive Summary:

Technical Abstract: Recently, FGD-gypsum - a hydrated calcium sulfate (CaSO4•2H2O) by-product of scrubbing SO2 from combustion gases at coal-fired power plants has received attention as one of the chemical amendments for environmental remediation and agricultural soil improvement. The FGD-gypsum is expected to be beneficial to improve soil quality due to its high concentration of sorbent components and neutralization potential. The most important uses for FGD-gypsum are to provide Ca and S for plant nutrition, reclaim sodic soils, reduce surface crusts and improve soil structure, and serve as an electrolyte to improve soil water infiltration. We hypothesized that the integration of FGD-gypsum and cropping diversity with winter cover crops would create favorable site conditions for improved soil physical properties (increased infiltration, increased aggregate stability, and lower compaction) under NT across geographic locations. The objective of our study was to evaluate the impact of FGD-gypsum and cereal rye cover crop on infiltration capacity, water stable aggregates, and bulk density under the continuous NT soybean-corn system in diverse soil and climatic conditions of the United States. Results of the 5-year study was presented.