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Mechanical weeding of Rumex obtusifolius L. under different N, P and K availabilities in permanent grassland

Author

Listed:
  • L. Strnad

    (Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic)

  • M. Hejcman

    (Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic
    Crop Research Institute, Prague, Czech Republic)

  • V. Křišťálová

    (Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic)

  • P. Hejcmanová

    (Department of Forest Management, Faculty of Forestry, Wildlife and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic)

  • V. Pavlů

    (Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic
    Crop Research Institute, Prague, Czech Republic)

Abstract

In Europe, Rumex obtusifolius L. is the most problematic grassland weed species, especially under the conditions of organic farming. The aims of this study were (1) to investigate the effectiveness of repeated mechanical weeding of R. obtusifolius from the permanent sward, cut two or three times per year, by digging the plants out from 5 cm below the soil surface, and (2) to test the effect of nutrient availability on the effectiveness of mechanical weeding. In 2007, the manipulative experiment was established on permanent grassland infested by R. obtusifolius using the following fertilizer treatments: control, P, N, NP and NPK. Plants of R. obtusifolius were removed eight times during three vegetation seasons. No significant decrease in the density of R. obtusifolius was recorded after three vegetation seasons and density was not significantly affected by fertilizer treatment. The cover of R. obtusifolius decreased slightly, but significantly, over the study period from 7.5% to 4.5%. The cover of R. obtusifolius was only marginally affected by fertilizer treatment. Mechanical weeding by digging the plants out from 5 cm below the ground is not a sufficient method of control for R. obtusifolius in infested fertile grasslands, even when applied eight times during three vegetation seasons.

Suggested Citation

  • 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.
    • Handle: RePEc:caa:jnlpse:v:56:y:2010:i:8:id:83-2010-pse
    DOI: 10.17221/83/2010-PSE
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    References listed on IDEAS

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    1. S. Hejduk & P. Doležal, 2004. "Nutritive value of broad-leaved dock (Rumex obtusifolius L.) and its effect on the quality of grass silages," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 49(4), pages 144-150.
    2. M. Kulhánek & J. Balík & J. Černý & V. Vaněk, 2009. "Evaluation of phosphorus mobility in soil using different extraction methods," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 55(7), pages 267-272.
    3. 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.
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    Cited by:

    1. M. Hejcman & S. Vondráčková & V. Müllerová & K. Červená & J. Száková & P. Tlustoš, 2012. "Effect of quick lime and superphosphate additives on emergence and survival of Rumex obtusifolius seedlings in acid and alkaline soils contaminated by As, Cd, Pb, and Zn," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 58(12), pages 561-667.

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