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Potassium dynamics in the soil and yield formation in a long-term field experiment

Author

Listed:
  • H.W. Scherer

    (Agricultural Faculty of the University of Bonn, Germany)

  • H.E. Goldbach

    (Agricultural Faculty of the University of Bonn, Germany)

  • J. Clemens

    (Agricultural Faculty of the University of Bonn, Germany)

Abstract

The influence of an interrupted K fertilisation on different K fractions of the soil, yield formation and K uptake by different crops was investigated in a long-term field experiment on Luvisol derived from loess. Irrespective of the previous K fertilisation, the interruption of K fertilisation resulted in a sharp decline of CAL extractable K. K concentration in the saturation extract as well as HCl extractable K were reduced while K fixation capacity increased within 10 years after omitting K. Omitting K fertilisation decreased yields of sugar beet and potatoes while cereals were not affected, although K uptake of all crops reacted to the differentiated K supply to a different extent.

Suggested Citation

  • H.W. Scherer & H.E. Goldbach & J. Clemens, 2003. "Potassium dynamics in the soil and yield formation in a long-term field experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(12), pages 531-535.
    • Handle: RePEc:caa:jnlpse:v:49:y:2003:i:12:id:4189-pse
    DOI: 10.17221/4189-PSE
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    Citations

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    Cited by:

    1. 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.
    2. Przemysław BARŁÓG & Witold SZCZEPANIAK & Witold GRZEBISZ & Radosław POGŁODZIŃSKI, 2018. "Sugar beet response to different K, Na and Mg ratios in applied fertilizers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(4), pages 173-179.

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