Reversed Effects of Phosphate Fertilizer on Reducing Phytoavailability of Cadmium in Mine Tailing Affected Soil
2
조회
0
다운로드
1
인용
0
참고문헌
초록
Abstract
To reduce effectively cadmium (Cd) phytoavailability by phosphate in mine tailing affected soil, fused and super phosphate (FSP), a main phosphate fertilizer in South Korea, was selected as phosphate source and then applied at the rates of 0, 78, 390, and 780 P2O5 kg ha-1. FSP did not decrease Cd extractability and radish Cd uptake, but increased significantly. The effect of Cd supplement and soil negativity increase through FSP application was not significant. Soil pH decreased markedly with increasing FSP application, which increased significantly soil Cd extractability and radish Cd uptake. As a result, phosphate fertilizer for reducing Cd phtyoavailability in heavy metals contaminated soil should be carefully selected as alkaline type.
참고문헌 (13)
- "National Institute of Agricultural Science and Technology Survey of heavy metals contamination degree of arable soil located in mining area. Annual Report Department of Agricultural Environment", pp.237~243 (1997), Department of Agricultural Environment
- "Trace Elements in Terrestrial Environments; Biogeochemistry, Bioavailability and Risks of Metals", pp.866~ (2001), Springer
- "Chemical immobilisation of lead zinc and cadmium in smelter contaminated soils using biosolids and rock phosphate.", 30 (2001)
- "Organic carbon. In Methods of Soil Analysis. Part II" (1965), Am. Soc. Agron. Inc. Publ.
- "Methods of Soil Chemical Analysis. National Institute of Agricultural Science and Technology" (1988)
- "Sequential extraction procedure for the speciation of particulate trace metals. Analytical chemistry 51", pp.~851 (1979)
- ". Recommendation standard of fertilization for crops." (1999), RDA
- "Concurrent adsorption of phosphate and zinc or calcium by a hydrous ferric oxide. Soil Sci. Soc. Am. J. 50" (1986)
- "Cadmium adsorption and transport in variable charge soils", 26 (1996)
- "Ionic strength and pH effects on the adsorption of cadmium and the surface charge of soils. Eur. J. Soil Sci. 45", (s.) (1994)
- "The effects of anion sorption on sorption and leaching of cadmium.", 37 (1999)
- "Korean Fertilizer Management Act" (2001), RDA
- "Soil Fertility and Fertilizers: An Introduction to Nutrient Management", pp.499~ (1999), Prentice Hall