CSIRO investigates energy efficiencies for Australian grain growers

CSIRO scientists have been investigating potential opportunities in energy efficiency, regional biodiesel self sufficiency and bioenergy production for Australian grain growers. The research is explained in an article entitled Bioenergy opportunities for grain growers in the December issue of Farming Ahead magazine.

The article explains that there is potential for Australian grain farms to improve energy efficiencies, become self-sufficient in biodiesel and use stubble for energy production. Nitrogen fertiliser was found to be the most energy-intensive input. When combined with diesel fuel use the two account for about 70 percent of total energy inputs when conventional farming methods are used. Amongst others, the researchers examined the use of crop rotation using legumes to replace nitrogen fertilisers and on-farm or regional biodiesel self sufficiency to remove the need for diesel use.

The article concludes that it is possible for grain farmers to significantly reduce their energy inputs but these reductions will require trade-offs in the amount of grain produced. The authors say it is physically possible for most grain farms to achieve self sufficiency in biodiesel but the economics of farm and regional scale biodiesel production are not favourable at the moment.

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