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Impact of the size of nitrogen fertiliser application rate on N2O flux

Author

Listed:
  • T. Šima

    (Department of Machines and Production Systems, Faculty of Engineering, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)

  • L. Nozdrovický

    (Department of Machines and Production Systems, Faculty of Engineering, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)

  • K. Krištof

    (Department of Machines and Production Systems, Faculty of Engineering, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)

  • J. Krupička

    (Department of Agricultural Machines, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The application rate of a nitrogen fertiliser is one of the most important factors that affect the nitrous oxide (N2O) flux. Calk ammonium nitrate with 27% nitrogen content was spread by a fertiliser spreader VICON RS-L connected with a tractor Zetor 16145 and incorporated into the soil by a power harrow Pöttinger Lion 301 six hours after spreading. Monitoring points were selected based on the size of application rate 0, 100, 200 and 300 kg/ha and were measured 7, 14, 21 and 28 days after fertiliser application and incorporation into the soil. Nitrous oxide emissions were measured by a photoacoustic field gas monitor INNOVA 1412 with a multipoint sampler INNOVA 1309. Based on the data obtained, there were found statistically significant differences among time intervals and among the size of the application rate at a 95.0% confidence level. Results have shown impacts of the size of fertiliser application rate and time interval after fertilisation on nitrous oxide flux.

Suggested Citation

  • T. Šima & L. Nozdrovický & K. Krištof & J. Krupička, 2014. "Impact of the size of nitrogen fertiliser application rate on N2O flux," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 60(1), pages 24-29.
    • Handle: RePEc:caa:jnlrae:v:60:y:2014:i:1:id:81-2012-rae
    DOI: 10.17221/81/2012-RAE
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