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The Response of Soil pH and Exchangeable Al to Alum and Lime Amendments

Author

Listed:
  • Christopher Jorelle Gillespie

    (Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695, USA)

  • João Arthur Antonangelo

    (Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078, USA)

  • Hailin Zhang

    (Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078, USA)

Abstract

Intensive cultivation and unprecedented utilization of ammoniacal fertilizer has accelerated soil acidification in the southern Great Plains and many other parts of the world. During a two-year study that evaluated the impact of soil pH and aluminum (Al) toxicity on winter wheat yield potential, we observed a variance in the edaphic responses of the two study sites (Stillwater and Chickasha) to two soil amendments, Alum [Al 2 (SO 4 ) 3 ] and lime [Ca(OH) 2 ]. We found that Al KCl values at Stillwater were 223% and 150% higher than Chickasha during Year 1 and Year 2, respectively, with similar soil pH. Additionally, Al sat values at Stillwater were 30.6% and 24.9% higher than Chickasha during Year 1 and Year 2, respectively. Surprisingly, when treated as a bivariate of Al sat , soil buffer indices differed in graphical structure. While Chickasha was identified with a cubic polynomial ( p < 0.0001), Stillwater was characterized by linear regression ( p < 0.0001). We have reason to believe that this divergence in edaphic response might be attributed to the organically bound Al, dissolved organic carbon (DOC), spatio-temporal variance, and adsorption reactions regulated by the solubility of Al(OH) +2 species in acidic soils.

Suggested Citation

  • Christopher Jorelle Gillespie & João Arthur Antonangelo & Hailin Zhang, 2021. "The Response of Soil pH and Exchangeable Al to Alum and Lime Amendments," Agriculture, MDPI, vol. 11(6), pages 1-13, June.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:6:p:547-:d:575085
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    Citations

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    Cited by:

    1. Damon E. Abdi & Jennifer Blanchard & Jeb S. Fields & Leticia Santos & Lily Beasley & Jeffrey Beasley, 2023. "Reducing Anion Nutrient Leaching Losses from a Short-Cycle Container-Grown Crop ( Tagetes patula ) Using Activated Aluminum," Agriculture, MDPI, vol. 13(5), pages 1-13, May.
    2. Cristina Hegedus & Simona-Nicoleta Pașcalău & Luisa Andronie & Ancuţa-Simona Rotaru & Alexandra-Antonia Cucu & Daniel Severus Dezmirean, 2023. "The Journey of 1000 Leagues towards the Decontamination of the Soil from Heavy Metals and the Impact on the Soil–Plant–Animal–Human Chain Begins with the First Step: Phytostabilization/Phytoextraction," Agriculture, MDPI, vol. 13(3), pages 1-49, March.

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