318-1 Effects of Phosphorus and Iron on the Phytotoxicity of Lettuce (Lactuca sativa L.) in Arsenic-Contaminated Soil.

Poster Number 1329

See more from this Division: SSSA Division: Soil Chemistry
See more from this Session: Risks and Remediation of Post-Mining Soils: II (Includes Student Competition)

Tuesday, November 17, 2015
Minneapolis Convention Center, Exhibit Hall BC

Min-Suk Kim1, Hyungi Min2, ByeongJoo Lee2, Eunjee Kim2 and Jeong-Gyu Kim2, (1)Department of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea, Republic of (South)
(2)Korea University, Seoul, Korea, Republic of (South)
Poster Presentation
  • SSSA_??.pdf (379.0 kB)
  • Abstract:
    We investigated that the effect of phosphorus (P) and iron (Fe) on the phytotoxicity of lettuce in arsenic (As)-contaminated soil using response surface methodology (RSM). To stabilize arsenic and supply nutrient, Fe and P were applied, respectively. From a chemical assessment, As extractability was decreased by Fe but increased by P. From a biological assessment, phytotoxicity test, As in lettuce roots was negatively associated with not only root elongation but also P in roots. From a confirmation study, we could verify that the former result was not a passing phenomenon and Fe was necessarily needed to protect secondary pollution by exclusive usage of phosphorus fertilizer.

    See more from this Division: SSSA Division: Soil Chemistry
    See more from this Session: Risks and Remediation of Post-Mining Soils: II (Includes Student Competition)

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