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Interannual dynamics of available potassium in a long-term fertilization experiment

Author

Listed:
  • M. Madaras

    (Crop Research Institute, Prague, Czech Republic)

  • J. Lipavský

    (Crop Research Institute, Prague, Czech Republic)

Abstract

Dynamics of the plant-available potassium (K) has been studied in polyfactorial long-term fertilization experiments since 1980. The fertilization scheme includes 10 combinations of K muriate and farmyard manure application rates (annually 0-230 kg K/ha). At medium treatment (annually 153 kg K/ha), the K balance within an 8-year crop rotation reflected crop specific K application rates with positive annual balances in years of growing silage maize and sugar beet (high K input), and negative in two years of growing alfalfa. Available K clearly corresponded to the dynamics of the K balance, with statistically significant fluctuations from 88 to 149 mg K/kg within one crop rotation cycle. Periodic fluctuations of available K induced by crop rotation were observed also in non-fertilized treatments. The variability of available K contents was influenced primarily by crop plants and experimental unexplained factors; interannual weather fluctuations and field differences were of low significance. In the paper, the importance of interannual K dynamics for the construction of correct long-term time trends is shown and discussed.

Suggested Citation

  • M. Madaras & J. Lipavský, 2009. "Interannual dynamics of available potassium in a long-term fertilization experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 55(8), pages 334-343.
    • Handle: RePEc:caa:jnlpse:v:55:y:2009:i:8:id:34-2009-pse
    DOI: 10.17221/34/2009-PSE
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    Citations

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    Cited by:

    1. M. Madaras & M. Koubová, 2015. "Potassium availability and soil extraction tests in agricultural soils with low exchangeable potassium content," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 61(5), pages 234-239.
    2. L. Strnad & M. Hejcman & V. Křišťálová & P. Hejcmanová & V. Pavlů, 2010. "Mechanical weeding of Rumex obtusifolius L. under different N, P and K availabilities in permanent grassland," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(8), pages 393-399.
    3. I. Jaskulska & D. Jaskulski & M. Kobierski, 2014. "Effect of liming on the change of some agrochemical soil properties in a long-term fertilization experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(4), pages 146-150.
    4. Jiří Balík & Jindřich Černý & Martin Kulhánek & Ondřej Sedlář & Pavel Suran, 2019. "Balance of potassium in two long-term field experiments with different fertilization treatments," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(5), pages 225-232.
    5. M. Madaras & M. Koubová & M. Smatanová, 2014. "Long-term effect of low potassium fertilization on its soil fractions," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(8), pages 358-363.
    6. I. Jaskulska & D. Jaskulski & M. Piekarczyk & K. Kotwica & L. Gałęzewski & P. Wasilewski, 2015. "Magnesium content in the leaves of winter wheat in a long-term fertilization experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 61(5), pages 208-212.
    7. Mikuláš MADARAS & Markéta MAYEROVÁ & Jitka KUMHÁLOVÁ & Jan LIPAVSKÝ, 2018. "The influence of mineral fertilisers, farmyard manure, liming and sowing rate on winter wheat grain yields," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(1), pages 38-46.

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