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Crop sequence effects on energy efficiency and land demand in a long-term fertilisation trial

Author

Listed:
  • Gerhard Moitzi

    (Experimental Farm Groß-Enzersdorf, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna (BOKU), Groß-Enzersdorf, Austria)

  • Reinhard W. Neugschwandtner

    (Institute of Agronomy, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln an der Donau, Austria)

  • Hans-Peter Kaul

    (Institute of Agronomy, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln an der Donau, Austria)

  • Helmut Wagentristl

    (Experimental Farm Groß-Enzersdorf, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna (BOKU), Groß-Enzersdorf, Austria)

Abstract

The effect of crop sequences (CR - continuous winter rye; CropR - three-field crop rotation of winter rye-spring barley-bare fallow) and fertilisation systems (unfertilised control, mineral fertiliser (NPK), farmyard manure (FYM)) on crop yield, energy efficiency indicators and land demand were analysed in a long-term experiment under Pannonian climate conditions. Due to lower fuel consumption in the bare fallow, the total fuel consumption for CropR was 27% lower than in CR. It was for NPK and FYM fertilisation by 29% and 42% higher than in the control. Although the energy output was lower in CropR than CR, the energy use efficiency for grain production increased by 35% and for above-ground biomass production by 20%. Overall crop sequences, the NPK treatment had higher crop yields, energy outputs and net-energy output with a lower energy use efficiency than the unfertilised control. CropR increased the land demand just by 20% in comparison to CR, although one-third of the land was not used for crop production. The land demand could be decreased with fertilisation by 50% (NPK) or 48% (FYM). A bare fallow year in the crop rotation decreased the crop yield, energy input and increased the energy use efficiency and land demand.

Suggested Citation

  • Gerhard Moitzi & Reinhard W. Neugschwandtner & Hans-Peter Kaul & Helmut Wagentristl, 2021. "Crop sequence effects on energy efficiency and land demand in a long-term fertilisation trial," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(12), pages 739-746.
    • Handle: RePEc:caa:jnlpse:v:67:y:2021:i:12:id:440-2021-pse
    DOI: 10.17221/440/2021-PSE
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    References listed on IDEAS

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