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In Situ Stabilization of Soil Lead Using Phosphorus and Manganese Oxide

Influence of Plant Growth

Ganga M. Hettiarachchi* and Gary M. Pierzynski

Department of Agronomy, Throckmorton Plant Sciences Center, Kansas State Univ., Manhattan, KS 66506-5501



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Fig. 1. Cumulative P removal by sudax grass aboveground biomass after four cuttings in the Joplin soil. Means with the same letter within a soil are not significantly different at P < 0.05.

 


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Fig. 2. Bioavailable Pb by physiologically based extraction test (PBET) for the (a) Joplin, (b) active repository (AR), and (c) time-critical repository (TCR) soil after four cuttings of sudax. Bioavailable Pb is expressed as a percentage of bioavailable Pb in the control sample. Means with the same letter within a phase are not significantly different at P < 0.05.

 


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Fig. 3. Swiss chard leaf tissue Pb concentration for all soils. Means with the same letter are not significantly different at P < 0.05.

 


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Fig. 4. Sudax shoot tissue concentration of (a) Cd and (b) Zn for the Joplin soil. Means with the same letter within a soil are not significantly different at P < 0.05.

 


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Fig. 5. Swiss chard leaf tissue (a) Cd and (b) Zn concentration for all soils. Means with the same letter are not significantly different at P < 0.05.

 





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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education
Vadose Zone Journal
Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
Copyright © 2002 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.