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Soil carbon transformation in long-term field experiments with different fertilization treatments

Author

Listed:
  • Jiří BALÍK
  • Jindřich ČERNÝ

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Martin KULHÁNEK

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Ondřej SEDLÁŘ

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

Soil carbon transformation was observed in long-term stationary field experiments (longer than 20 years) at two sites with different soil-climatic conditions (Luvisol, Chernozem). The following crops were rotated within the trial: row crops (potatoes or maize)-winter wheat-spring barley. All three crops were grown each year. Four different fertilization treatments were used: (a) no fertilizer (control); (b) sewage sludge (9.383 t dry matter/ha/3 years); (c) farmyard manure (15.818 t dry matter/ha/3 years); (d) mineral NPK fertilization (330 kg N, 90 kg P, 300 kg K/ha/3 years). At the Luvisol site, the control treatment showed a tendency to decrease organic carbon (Corg) in topsoil. At organic fertilization treatments the content of Corg increased: sewage sludge - +15.0% (Luvisol) and +21.8% (Chernozem), farmyard manure - +19.0% (Luvisol) and +15.9% (Chernozem). At the NPK fertilization, the increase was +4.8% (Luvisol) and +4.7% (Chernozem). The increased Corg content was also associated with an increase of microbial biomass carbon (Cmic) and extractable organic carbon (0.01 mol/L CaCl2 and hot water extraction). The ratio of Cmic in Corg was within the range 0.93-1.37%.

Suggested Citation

  • Jiří BALÍK & Jindřich ČERNÝ & Martin KULHÁNEK & Ondřej SEDLÁŘ, 2018. "Soil carbon transformation in long-term field experiments with different fertilization treatments," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(12), pages 578-586.
    • Handle: RePEc:caa:jnlpse:v:64:y:2018:i:12:id:591-2018-pse
    DOI: 10.17221/591/2018-PSE
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    References listed on IDEAS

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    1. H.W. Scherer & D.J. Metker & G. Welp, 2011. "Effect of long-term organic amendments on chemical and microbial properties of a luvisol," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(11), pages 513-518.
    2. J. Černý & J. Balík & M. Kulhánek & V. Nedvěd, 2008. "The changes in microbial biomass C and N in long-term field experiments," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 54(5), pages 212-218.
    3. V. Nedvěd & J. Balík & J. Černý & M. Kulhánek & M. Balíková, 2008. "The changes of soil nitrogen and carbon contents in a long-term field experiment under different systems of nitrogen fertilization," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 54(11), pages 463-470.
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