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Short-term Changes of pH Values and Aluminium Activity in Acid Soils after the Application of Nitrogen Fertilizers

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Molecular Environmental Soil Science at the Interfaces in the Earth’s Critical Zone

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Abstract

Laboratory experiments were conducted to investigate the effects of nitrogen fertilizers on the soil pH, Al activity and Al phytotoxicity in 3 acidic soils. The results showed that application of urea and ammonium carbonate caused a significant increase in soil pH, and enhanced with the raising concentrations. However, application of ammonium sulfate induced a distinct decrease in soil pH. Moreover, application of urea and ammonium carbonate caused a profound decline in soil’ exchangeable Al. In contrast, application of ammonium sulfate induced a noticeable increase in soil’ exchangeable Al, and reinforced with the enhanced concentrations when compared with the no-fertilizer control. In our study, urea and ammonium carbonate significantly decreased exchangeable Al in acid soils, therefore reduced Al toxicity to maize seedlings. On the contrary, ammonium sulfate enhanced Al toxicity to maize seedlings and inhibited their growth.

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Authors and Affiliations

  1. College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China

    Hejie Pi, Qingru Zeng, Zhaohui Jiang, Jianyu Liao, Xiaoyou Feng & Yulin Sun

Authors
  1. Hejie Pi
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  2. Qingru Zeng
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  3. Zhaohui Jiang
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  4. Jianyu Liao
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  5. Xiaoyou Feng
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  6. Yulin Sun
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Corresponding author

Correspondence to Qingru Zeng .

Editor information

Editors and Affiliations

  1. College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310029, China

    Jianming Xu

  2. Department of Soil Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada

    Pan Ming Huang

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© 2010 Zhejiang University Press, Hangzhou and Springer-Verlag Berlin Heidelberg

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Pi, H., Zeng, Q., Jiang, Z., Liao, J., Feng, X., Sun, Y. (2010). Short-term Changes of pH Values and Aluminium Activity in Acid Soils after the Application of Nitrogen Fertilizers. In: Xu, J., Huang, P.M. (eds) Molecular Environmental Soil Science at the Interfaces in the Earth’s Critical Zone. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-05297-2_41

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