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Published online 2 June 2005
Published in Soil Sci Soc Am J 69:1036-1046 (2005)
DOI: 10.2136/sssaj2004.0148
© 2005 Soil Science Society of America
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Effect of Ammonium, Potassium, and Sodium Cations and Phosphate, Nitrate, and Chloride Anions on Zinc Sorption and Lability in Selected Acid and Calcareous Soils

Jim Jian Wang* and Dustin L. Harrell

Dep. of Agronomy and Environmental Management, 313 Sturgis Hall, Louisiana State Univ. Agricultural Center, Baton Rouge, LA. 70803



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  		Fig. 1. Zinc sorption on selected acid soils as affected by differing cationic and anionic background solutions. C = equilibrium solution concentration; q = sorbed zinc amount.

 


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  		Fig. 2. Zinc sorption on selected calcareous soils as affected by differing cationic and anionic cationic background solutions. C = equilibrium solution concentration; q = sorbed zinc amount.

 


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  		Fig. 3. Relationship between the total Zn sorption (at the highest initial Zn concentration in KH2PO4 background) and the amorphous Fe content for acid and calcareous soils. q = sorbed zinc amount.

 


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  		Fig. 4. Sorption isotherms for total, labile, and nonlabile Zn sorption for an acidic Dundee soil as affected by different background cationic and anionic species. C = equilibrium solution concentration; q = sorbed zinc amount.

 


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  		Fig. 5. Sorption isotherms for total, labile, and nonlabile Zn sorption for a calcareous Norwood soil as affected by different background cationic and ionic species. C = equilibrium solution concentration; q = sorbed zinc amount.

 




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