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Comparison of energy inputs and energy efficiency for maize in a long-term tillage experiment under Pannonian climate conditions

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  • 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

Sustainable crop production requires an efficient usage of fossil energy. This six-year study on a silt loam soil (chernozem) analysed the energy efficiency of four tillage systems (mouldboard plough 25-30 cm, deep conservation tillage 35 cm, shallow conservation tillage 8-10 cm, no-tillage). Fuel consumption, total energy input (made up of both direct and indirect input), grain of maize yield, energy output, net-energy output, energy intensity and energy use efficiency were considered. The input rates of fertiliser, herbicides and seeds were set constant; measured values of fuel consumption were used for all tillage operations. Total fuel consumption for maize (Zea mays L.) production was 81.6, 81.5, 69.5 and 53.2 L/ha for the four tillage systems. Between 60% and 64% of the total energy input (17.0-17.4 GJ/ha) was indirect energy (seeds, fertiliser, herbicides, machinery). The share of fertiliser energy of the total energy input was 36% on average across all tillage treatments. Grain drying was the second highest energy consumer with about 22%. Grain yield and energy output were mainly determined by the year. The tillage effect on yield and energy efficiency was smaller than the growing year effect. Over all six years, maize produced in the no-tillage system reached the highest energy efficiency.

Suggested Citation

  • Gerhard Moitzi & Reinhard W. Neugschwandtner & Hans-Peter Kaul & Helmut Wagentristl, 2021. "Comparison of energy inputs and energy efficiency for maize in a long-term tillage experiment under Pannonian climate conditions," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(5), pages 299-306.
    • Handle: RePEc:caa:jnlpse:v:67:y:2021:i:5:id:67-2021-pse
    DOI: 10.17221/67/2021-PSE
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    References listed on IDEAS

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    1. Gerhard Moitzi & Reinhard W. Neugschwandtner & Hans-Peter Kaul & Helmut Wagentristl, 2021. "Effect of tillage systems on energy input and energy efficiency for sugar beet and soybean under Pannonian climate conditions," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(3), pages 137-146.
    2. Šarauskis, Egidijus & Buragienė, Sidona & Masilionytė, Laura & Romaneckas, Kęstutis & Avižienytė, Dovile & Sakalauskas, Antanas, 2014. "Energy balance, costs and CO2 analysis of tillage technologies in maize cultivation," Energy, Elsevier, vol. 69(C), pages 227-235.
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