Browsing by Author "Haynes, MA"

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Cane supply options analysis for maximising whole industry profitability : SRDC Final report MSA001
(SRDC, 2001) Higgins, AJ; Muchow, RC; Haynes, MA; Hollis, JJ
Opportunities exist for increasing industry profitability in the Mackay region through alternative cane supply schedules that exploit differences in CCS and cane yield at harvest date, found across the Mackay region and across individual paddocks on a farm. Research within CRC-Sugar Subprogram 3.2 produced the models needed to conduct options for alternative cane supply arrangements. With Mackay as a case study, and through participatory research with the Mackay Cane Supply Options Analysis Group (MCSOAG), key on-farm input data of CCS and cane yield response to harvest date and off-farm constraints in harvesting, transport and milling were developed for the model. Options analysis showed potential gains in profitability of $13M per year were possible in Mackay, without increased expenditure on capacity. Given an agreement for pilot implementation during harvest 2000, a pathway to implementation was developed through a process of workshops using action research. Some barriers to implementation were addressed, as well as a process that would lead to a further uptake after 2000. Eighteen harvesting groups and nine growers piloted alternative cane supplies in the 2000 harvest season, and while proof of concept was not established due to adverse conditions, piloting continued in 2001. Through evaluating the pilots of the 2000 harvest season, key learnings were incorporated to improve the process for 2001.
Delivering the capability to evaluate alternative cane supply arrangements across the sugar industry using a whole industry systems approach : SRDC Final report CTA0044
(SRDC, 2002) Higgins, AJ; Muchow, RC; Haynes, MA; Peel, SL; Prestwidge, DB; Williamson, MA
Increasing cost/price pressure has forced the Australian sugar industry to seek innovative avenues for increasing profitability. To address this, the industry saw opportunities for increasing productivity and hence profitability through optimising the harvest date of sugarcane. Optimising the harvest date of sugarcane accounts for geographical and crop differences in cane yield and the sugar content of cane for different harvest dates throughout the harvesting season. Whole-ofsystem research within CRC-Sugar produced the statistical and optimisation models needed to conduct options analysis for these alternative cane supply arrangements using case studies in Mackay and Mossman. Options analysis using data from these case studies showed average potential gains in profitability of $119/ha for Mackay and $79/ha for Mossman, at a sugar price of $350/t. To provide the capacity for evaluating and implementing alternative cane supply options in other mill regions, computer tools, user interfaces and standardised databases were developed. The use of this software and documented processes was applied not only to the case study regions but also in partnership with other mill regions, namely Maryborough and the Burdekin. Key outcomes were the reduction in time from start-up to implementation reduced from four years down to one year, an increased uptake from growers and harvesting groups, ease of interpretation of schedules, and increased interest from other mill regions. A computer tool was also developed for the mathematical cane yield re-estimation model, and was used successfully by the Mossman cane inspector during the 2001 harvest season.
Improving profitability of the Maryborough Sugar Industry by assessing the options for cane supply and season length : SRDC Final report MSF001
(SRDC, 2002) Higgins, AJ; Downs, P; Sestak, F; Peatey, G; Haynes, MA; Muchow, RC
Increasing cost/price pressure has forced the Australian sugar industry to seek innovative avenues for increasing profitability. To address this, the industry saw opportunities for increasing productivity and hence profitability through optimising the harvest date of sugarcane to account for geographical and crop differences in cane yield and the sugar content of cane. Whole-of-system research within CRC-Sugar produced the statistical and optimisation models needed to conduct options analysis for these alternative cane supply arrangements using case studies in Mackay and Mossman. The tools developed in CRC-Sugar were used to develop alternative cane supply options in partnership with the Maryborough sugar region. Through exploiting the geographical differences in CCS and cane yield at harvest date, average gains in profitability were $77/ha (sugar price $350/t) versus current equity arrangements. Farms that were found to be significantly early or late maturing, had higher potential gains. Pilot implementation of alternative cane supplies took place during the 2001 harvest season and involved the Maryborough Sugar Factory, where a significant gain in CCS was achieved. Seven other farms benefited from the optimisation work. The Maryborough region will continue to adopt alternative cane supplies in 2002 with a likely increased uptake of the optimisation strategy.