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Sulphur status in agricultural soils determined using the Mehlich 3 method

Author

Listed:
  • Jiří ZBÍRAL
  • Michaela SMATANOVÁ

    (Central Institute for Supervising and Testing in Agriculture, Brno, Czech Republic)

  • Pavel NĚMEC

    (Central Institute for Supervising and Testing in Agriculture, Brno, Czech Republic)

Abstract

Several sets of soil samples were chosen to demonstrate the applicability of the Mehlich 3 extractant for the determination of sulphur (S) in soils. Archived samples from 139 basal soil monitoring plots (BSMS) sampled in 1995 and 2013, samples from eleven long-term field trials sampled in 1981 and 2017, 1167 soil samples from the areas vulnerable to S losses and 720 samples from the non-vulnerable areas sampled in 2010 were chosen for the experiments. Mehlich 3 clearly showed a statistically highly significant decrease in the soil S content caused by reduction of SO2 emissions in the long-term field experiments from 33 mg/kg in 1981 to 8 mg/kg in 2017 for the median of the untreated controls. Similar results were obtained for BSMS samples, where an average decrease from 26 mg/kg in 1995 to 17 mg/kg in 2013 was found. Mehlich 3 also showed that more than 52% of samples from the areas vulnerable to S losses were in a very low content category in contrast to only 3% of soils from the other areas. Mehlich 3 clearly proved the capacity to distinguish changes in the content of soil S in all studied cases.

Suggested Citation

  • Jiří ZBÍRAL & Michaela SMATANOVÁ & Pavel NĚMEC, 2018. "Sulphur status in agricultural soils determined using the Mehlich 3 method," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(6), pages 255-259.
    • Handle: RePEc:caa:jnlpse:v:64:y:2018:i:6:id:142-2018-pse
    DOI: 10.17221/142/2018-PSE
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    References listed on IDEAS

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    1. M. Kulhánek & J. Balík & J. Černý & O. Sedlář & F. Vašák, 2016. "Evaluating of soil sulfur forms changes under different fertilizing systems during long-term field experiments," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 62(9), pages 408-415.
    2. J. Balík & M. Kulhánek & J. Černý & J. Száková & D. Pavlíková & P. Čermák, 2009. "Differences in soil sulfur fractions due to limitation of atmospheric deposition," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 55(8), pages 344-352.
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