Sustainability and integrated weed management in Australian winter cropping systems: a bioeconomic analysis
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Economic evaluations of the benefits of integrated weed management often only consider the benefits of
management in the crop phase, and ignore the impact of rotational options. In particular, non-crop phases such
as annual and perennial pasture phases can have a substantial impact upon weed population dynamics and
economic returns. Moreover, extended perennial pasture phases are being promoted to address a range of onfarm
sustainability issues such as excessive deep drainage (i.e. salinity), runoff and soil erosion. A stochastic
bioeconomic model is developed to evaluate potential trade-offs and synergies between the goals of long-term
weed management and achieving sustainability goals.