Location: Soil Dynamics ResearchTitle: Effect of cover crops and crop rotation on physical properties of soils amended with flue gas desulfurization gypsum
|SHEDEKAR, VINAYAK - The Ohio State University|
|ISLAM, KHANDAKAR - The Ohio State University|
|Fausey, Norman - Norm|
|DICK, WARREN - The Ohio State University|
|BATTE, MARV - University Of Kentucky|
|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.
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.