Completed projects and reports

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Sugar Research Australia, Sugar Research Development Corporation and BSES reports from completed research projects and papers.

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Boosting productivity in Maryborough by assisting cane growers to understand their soils : final report MSF007
(2014) Dougall, A; Estbergs, A; Sugars, M
This project was based around producing a soil map of the Bauple area which is south of Maryborough. The soil map will be a valuable tool for improving productivity in the area because it can facilitate better farm management, for example variety selection by soil type and more specific management of different soils. We used this mapping project as an extension tool to teach growers about their soils and how to better manage them, this resulted in four main extension activities:
Implementing methods for wider industry adoption : SRDC final report CSE009
(2007) Jakku, E; Everingham, Y; Inman-Bamber, G; Thorburn, P
Many of the challenges that the sugarcane industry faces are complex systems issues and R&D addressing these issues requires the active participation of industry stakeholders. A deeper understanding of processes that contribute to effective engagement between researchers and end-users is therefore essential to deal with the ongoing and evolving complexities of sugarcane systems. Without this knowledge, millions of dollars of R&D investment will be wasted and immeasurable environmental, social and economic benefits will be lost. The framework developed in this project has the potential to improve the way in which participatory research and technology development are conducted. However, in order to realise these impacts, the framework needs to be further developed to more clearly guide interactions between scientists, extension officers and farmers. Building capacity within the industry to implement learnings from this framework could help maximise the impact of complex technologies in the Australian sugarcane industry. This will assist the industry to profit rather than suffer from the complex challenges that it faces.
Developing a new approach to extension for widespread adoption of Best Management Practice
(2002)
MUL001 has sought to improve the uptake of research outcomes by the sugar industry’s growing sector. It is recognised that the traditional one-to-one extension approach is no longer affordable and the current system was not adequately facilitating the uptake of research at a time when the industry needed to make every post a winner. This project developed a group extension program in the Mulgrave region to promote the development and adoption of best management practice. 13 productivity groups were established which sought to involve 100% of growers. These groups utilise discussion type meetings and field demonstrations in order to enhance the individual knowledge and understanding of various aspects of sugarcane production, which are relevant to the management decisions faced at the time. Typically each group would meet 4 to 5 times each year. Emphasis is placed on learning from other growers as well as people with specialist knowledge in each particular field. Monitoring programs were also utilised to enhance the knowledge, understanding, skills and attitudes of individuals. Monitoring harnesses the power of learning-by-doing and has proven very effective. Monitoring programs for production constraints such as canegrubs, rats and weevil borer were coordinated by this project and strategically timed to enhance the effectiveness of group activities. The group extension program has been in operation since March 2000 and continues to improve in effectiveness and grower participation. Throughout the project 89% of growers participated in the extension program and on average, 63% of cane production areas were represented at each group activity. Although it is difficult to objectively measure change in knowledge, understanding, skills and attitudes, there are numerous examples of subtle but visible change in the behaviour of farm managers, which could be attributed to the extension program. An important output of the project has been the development of a communication structure. This structure has proven invaluable to maintain information flow throughout all sectors of the industry and maintain a dialogue in an age of continuous change and uncertainty. This structure will be necessary to drive real and sustained change in the industry.
Towards long-term sustainability of sugarcane farming in the Johnstone River catchment
(2001) Stewart, RL
Cane farmers are important stakeholders in the Johnstone River Catchment. Their engagement in the sustainability debate is essential, however, at times they appear to be isolated from it. The Johnstone River Catchment Management Association (JRCMA) saw the need for their engagement and applied to The Sugar Research and Development Corporation (SRDC) for a grant to do an action research project to achieve that end. Growers meeting in small groups discussed all aspects of cane growing with the aim of producing a booklet of guidelines for best management practices for the catchment. Growers were invited to speak freely but challenged to be certain that the practices they nominated were sustainable and demonstrable on their own farms. More than 100 growers participated in the discussions over two years and a booklet entitled “Growers perspective of best management for sustainable cane farming (Documenting practices in the Johnstone, Moresby and Liverpool Creek Catchments)” was published in best management practice format. The project received wide acclaim and The Honourable Rod Welford; Minister for Natural Resources, Environment and Heritage launched the booklet in April 2000. Demonstration of best practices for sustainable farming from a grower’s perspective were achieved through a major field day organised by the JRCMA and through a series of video clips of many practices throughout the catchment. “The Most Significant Change Approach” also known as “The Story Method” was used to determine changes growers perceived were occurring in the farming, agency and general communities as a result of this project. Focus group technique was also used to gauge the effect of the project on the general community and agency groups.
Integrating and optimising farm-to-mill decisions to maximise industry profitability : SRDC Final report CSE005
(2006) Higgins, A; Prestwidge, D; Sandell, G; Antony, G; Laredo, L; Thorburn, P
Late in the 1990’s, the Australian sugar industry recognised the need to achieve increased integration across its value chain, so as to reduce costs and increase international competitiveness. Past projects and independent assessments highlighted the harvesting and transport interface as being a high priority due to its current logistical inefficiencies and large potential economic benefits from removing these. The logistical inefficiencies were partly manifested by the social and ownership differences between these sectors. CSE005 aimed to explore and implement multiple opportunities to achieve economic benefits at the harvesting and transport interface of the value chain, using a combined participatory action research and technical modelling approach. The project used case studies, initially being the Mourilyan, Mossman and Plane Creek regions. Each case study had a local industry working group, to drive the process of building models, validation, and developing pathways to adoption. Mourilyan was the basis for the model development due to the broad range of opportunities that the region was to explore and due to its technical capacity to work closely with the research team. This research team was multi-disciplinary across CSIRO, BSES and Harvesting Solutions due to the broad range of modelling expertise required in harvesting and transport. One of the first steps with the Mourilyan case study was to conceptualise the value chain in harvesting and transport, which defined the key linkages and drivers across these sectors. This was the basis for formulating a modelling framework which defined the interactions between the industry component models, some of which already existed within the industry. A modelling framework approach was better than building a super-model since it was more transparent to the local industry working groups, more robust and had greater industry ownership. Throughout the life of the Mourilyan case study, the modelling work underwent many revisions (over a one-year timeframe) through the participatory action research process. During this process, the case study regions developed and refined options (or scenarios) for the models. This provided the case study working group with a growing understanding of best-bet options for the local region and the benefits across the participants of the chain. Opportunities identified across the case study regions collectively fell into the themes of: increased time window of harvest through staggering the start times of harvesters; harvest best practice; improved seasonal logistics; transition to larger harvesting groups; and rationalisation/upgrading of transport infrastructure. Their collective potential benefits from these options was in excess of $2.00/tc for some case studies. The increased time window of harvest option was adopted immediately in the Mourilyan and Mossman regions due to minimal change management and no capital investment requirements, and continued to be implemented throughout the life and beyond CSE005. Harvest best practice started to be piloted in Mourilyan as a result of CSE005, though its adoption was often hampered by pressure to fill bins and disruptions. Whilst the Mourilyan and Mossman regions agreed the time window of harvest options were beneficial, an evaluation based on factual data was impossible due major changes in the base line evaluation (e.g. changed number of harvesting groups, tonnes crushed at each mill) from 2002 to 2005. About mid-way through CSE005, the Mourilyan and Plane Creek case studies ended pre-maturely due to reasons beyond the control of the project team. Whilst this was a disappointment for the project team and for many of the participants in the local industry working groups, the Herbert quickly became a replacement case study.
Bed forming utilising GPS guidance by the CAS (Calen and St Helen) Young Farmers Association : SRDC Grower Group Innovation Project final report
(2008) Gordon, G; Mackenzie, C
This project aimed to enhance controlled traffic farming with GPS guidance in undulating conditions in the Calen and St Helen district of Mackay. The project focused on the use of preformed beds, as well as investigating different planting techniques (eg dual row and wide shute on preformed beds). The group also wanted to investigate the potential for a contracting facility to bed form under guidance. Key results from the project include: - Controlled traffic systems were enhanced through the use of GPS. Without GPS we had issues with maintaining even row spacings along the contours and side slopes, and holding a billet planter in position on slopes. Through the use of GPS, and the Alexander (flat top) bed former, we were able to overcome these issues. - We found that the flat top bed shape formed with the Alexander bed former was the most suitable for our region. While the trial results indicated there was no yield, NIR or financial difference between the flat top, round top bed and conventional planting, we found the flat top beds were much easier to manage in our undulating farming conditions as the tractor/planter can more easily stay on the wheel ruts and not stray from the desired position. With the flat top bed former we found we could mark out with a GPS tractor and then conduct other paddock operations without the GPS because the bed shapes kept the tractor and implement in the GPS wheel tracks. o The flat top beds provided the best wheel track for our planting equipment, as this profile seemed to form a “railway like track centre”, making it very easy to keep the planter in the correct position without the need for GPS guidance. The round beds seem to have a wider wheel space and we experienced some movement and uneven row spacing, however this could be eliminated with the use of guidance equipment on the planting gear (which we don’t have). -Different planting techniques on preformed beds had very similar yields. The dual rows on preformed beds performed the worst with a yield of 103.7 t/ha, compared to singles on beds and conventional planting with 108.63 and 107.81 t/ha respectively. o Based on the gross return per hectare, the single wide shute treatments planted on preformed beds performed the best with a return of $2,582.78 per hectare. However the conventional treatment was very close with a return of $2,539.34 per hectare. The dual rows had a return of $2,464.90 per hectare. Across the treatments there was only a difference of $117.88/ha. - A FEAT analysis conducted by a DPI economist showed that the group’s cur rent farming system (controlled traffic and tilled system) resulted in a Farm Operating Return of $20, 070 and a Return on Investment of 1.44%. While the improved farming system which involves controlled traffic, preformed beds, soybean fallow and reduced tillage resulted in a Farm Operating Return of $54, 947 and a Return on Investment of 3.94%. - There was very little difference in yield and NIR data between the conventional planting method, and the two different bed shapes. The CASH preformed beds, which have a flat shape, had the highest yield with 98.97 t/ha, however it also had the lowest PRS. Tonnes of sugar per hectare across the treatments were almost identical and as a result the Gross Return per hectare only had a difference of $29 between the treatments. o While there was no major difference in gross return between the treatments, we noticed that the flat bed shape was much easier to form, plant and harvest, compared to the round shape. F:\New folder\SRDC\SRDC USB\MRD\Projects - GGIP\Archive\GGP021\Final Report\100426 GGP021_final_report - final.doc - Preliminary results indicate that the flat top bed system has much greater water infiltration and plant extraction than the other systems. However more detailed, long term work needs to be conducted before final conclusions can be drawn. -In 2007 approximately 160 acres outside of the group members farms was contract bed formed, and an additional 100 acres was contract bed formed in 2008. The equipment will continue to be available for hire into the future. - The group members have determined that in this area, preformed beds are essential for a successful legume fallow. All group members will use the bed former prior to planting soybean.
A participatory approach towards improving industry sector profits through improved harvesting efficiency : SRDC Final report BSS227
(2002) Agnew, JR
Recent productivity gains through the introduction of high yielding varieties, green cane harvesting, improved drainage and irrigation have resulted in larger, mostly lodged crops with increased suckering. As a result, ccs levels have declined, dirt in supply and extraneous matter levels have increased, and stool damage at harvest is obvious. Growers do not always connect their role in crop presentation to ease of harvest and resultant cane quality. Failure to hill up plant cane adequately and match it to harvester basecutter angle; inconsistent row spacing and lack of attention to farm layout, headlands and haul roads are the main deficiencies. Harvester operators and harvest crews may also have goals conflicting with cane quality and quality of ground job. The standard system of harvester payment, which is based on $/tonne, rewards speed of operation. Stool damage, cane loss and poor billet quality result. The mills? transport limitations and need for continuous supply may impose restrictions on harvesting where by the harvester must deliver a fixed quantity of cane within a short time frame. This can result in poor ground job and higher cane losses (because fan speed is increased in an attempt to achieve cleaning at high pour rates). Short and damaged billets can result from pressure to achieve high pour rates and high bin weights. Encouraging harvesting under wet conditions results in field damage. The viability of the north Queensland sugar industry is in jeopardy. Industry leaders believe there are large productivity and profitability gains to be made by adopting harvesting best practice (HBP).
Increased adoption of efficient sustainable irrigation practices by Australian canegrowers : SRDC Final report BS127S
(1997) Holden, JR; Hussey, B; Shannon, EL
SRDC funded the three-year project 'Increased Adoption of Efficient, Sustainable Irrigation Practices by Australian Canegrowers in July 1994. The broad objectives of the project were to; Determine perceived limits to adoption of more efficient irrigation practices; Increase grower awareness of the benefits of more efficient water use; Research and develop a technical package for more efficient irrigation techniques; Demonstrate and promote best irrigation practice for irrigation of sugarcane. The overall aim was to: 'improve productivity, profitability and sustainability of canegrowing through increased adoption of efficient irrigation techniques by Australian canegrowers."

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