Summary
Four calcareous Arizona soils were treated with sulfuric acid applied to varying degrees of saturation of the acid titratable basicity of the soils. At less than 100% saturation there was a significant increase in water soluble Mn and in DTPA extractable Fe and Mn compared with untreated soil. Only when the acid treatment exceeded 100% ATB did a significant increase occur in the water soluble forms of Fe and Zn. The amounts of the Fe and Zn extracted increased with the rate of application and with time of soil/acid contact at the higher level of acidification.
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Additional information
Journal paper No. 2143, Arizona Agricultral Experiment Station, The University of Arizona, Tucson 85721.
This research was supported by a grant from the Arizona Mining Association.
The University of Arizona
Research Associates and Associate Professor, respectively, Department of Soils, Water and Engineering.
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Ryan, J., Miyamoto, S. & Stroehlein, J.L. Solubility of manganese, iron, and zinc as affected by application of sulfuric acid to calcareous soils. Plant Soil 40, 421–427 (1974). https://doi.org/10.1007/BF00011527
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DOI: https://doi.org/10.1007/BF00011527