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The role and value of eastern star clover in managing herbicide-resistant crop weeds: A whole-farm analysis

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  • Gibson, Lauren
  • Kingwell, Ross
  • Doole, Graeme

Abstract

In the broadacre dryland farming system of Western Australia herbicide resistance in major crop weeds is an increasingly serious problem. A new option to combat herbicide resistance involves growing eastern star clover (Trifolium dasyurum). This is a new pasture legume with a unique delayed germination that allows control of weeds using various chemical and non-chemical strategies, without unduly compromising the pasture's subsequent production. This study assesses the role and value of eastern star clover in managing herbicide-resistant weeds on various farms. The study employs the farming system model known as MIDAS, a whole-farm, bioeconomic model. Key scenarios of different degrees of severity of herbicide resistance for three farm types are examined. The main findings of the analysis are that as the severity of herbicide resistance increases, eastern star clover becomes an increasingly attractive option. Although the introduction of eastern star clover does reduce a farm's capacity to carry sheep, and thereby lessens profits generated by the sheep enterprise, it enables longer, more profitable sequences of crops to be grown with fewer weed problems. Sensitivity analysis suggests that reduced cost of eastern star clover seed, cheap supplementary feed, and higher grain prices will further increase the profitability of eastern star clover.

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  • Gibson, Lauren & Kingwell, Ross & Doole, Graeme, 2008. "The role and value of eastern star clover in managing herbicide-resistant crop weeds: A whole-farm analysis," Agricultural Systems, Elsevier, vol. 98(3), pages 199-207, October.
    • Handle: RePEc:eee:agisys:v:98:y:2008:i:3:p:199-207
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    References listed on IDEAS

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    1. Bathgate, A. & Revell, C. & Kingwell, R., 2009. "Identifying the value of pasture improvement using wholefarm modelling," Agricultural Systems, Elsevier, vol. 102(1-3), pages 48-57, October.
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    3. Tas Thamo & Ross S. Kingwell & David J. Pannell, 2013. "Measurement of greenhouse gas emissions from agriculture: economic implications for policy and agricultural producers," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 57(2), pages 234-252, April.
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    5. Monjardino, Marta & Loi, Angelo & Thomas, Dean T. & Revell, Clinton K. & Flohr, Bonnie M. & Llewellyn, Rick S. & Norman, Hayley C., 2022. "Improved legume pastures increase economic value, resilience and sustainability of crop-livestock systems," Agricultural Systems, Elsevier, vol. 203(C).
    6. Kingwell, Ross S. & Metcalf, Tess, 2009. "Low Emission Farming Systems: A whole-farm analysis of the potential impacts of greenhouse policy," 2009 Conference (53rd), February 11-13, 2009, Cairns, Australia 48162, Australian Agricultural and Resource Economics Society.
    7. Finlayson, John & Real, Daniel & Nordblom, Tom & Revell, Clinton & Ewing, Mike & Kingwell, Ross, 2012. "Farm level assessments of a novel drought tolerant forage: Tedera (Bituminaria bituminosa C.H. Stirt var. albomarginata)," Agricultural Systems, Elsevier, vol. 112(C), pages 38-47.
    8. Kingwell, Ross & Fuchsbichler, Amy, 2011. "The whole-farm benefits of controlled traffic farming: An Australian appraisal," Agricultural Systems, Elsevier, vol. 104(7), pages 513-521, September.
    9. Young, Michael & Kingwell, Ross & Young, John & Vercoe, Phil, 2020. "An economic analysis of sheep flock structures for mixed enterprise Australian farm businesses," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 64(3), July.
    10. Rose, Gus & Kingwell, Ross S., 2009. "Seasonal labour is the most profitable use of labour in broadacre crop dominant farms," 2009 Conference (53rd), February 11-13, 2009, Cairns, Australia 47947, Australian Agricultural and Resource Economics Society.
    11. Kingwell, Ross S., 2011. "Managing complexity in modern farming," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 55(1), pages 1-23.
    12. Michael Young & Ross Kingwell & John Young & Phil Vercoe, 2020. "An economic analysis of sheep flock structures for mixed enterprise Australian farm businesses," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 64(3), pages 677-699, July.

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