한국환경농학회지 (Korean Journal of Environmental Agriculture)
- 제20권5호
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- Pages.317-324
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- 2001
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Short-term Effect of Phosphogypsum on Soil Chemical Properties
- Chung, Jong-Bae (Department of Agricultural Chemistry, Daegu University) ;
- Kang, Sun-Chul (Department of Biotechnology, Daegu University) ;
- Park, Shin (Department of Agricultural Chemistry, Daegu University)
- 발행 : 2001.12.30
초록
Short-term effect of phosphogypsum on soil properties including acidification, salinity and metal availability were investigated under laboratory and field conditions. Phosphogypsum and mixtures of phosphogypsum and compost were added to soil and incubated in a laboratory condition with 15% moisture content. Phosphogypsum treatments were 2.5 and 5.0 g/kg soil and in the treatments of phosphogypsum and compost mixture 10 g of compost was added additionally. After the 30 days of incubation, an additional phosphogypsum and/or compost were added to the remaining soils at the same rates of the first treatments. pH, electrical conductivity, and available hazardous elements were measured periodically during the incubation. Field experiment was conducted in a plastic film house of mellon with four treatments of phosphogypsum and compost mixtures - 25+125, 50+125, 50+250 and 100+250 kg/165