CQU data tool eases “mango madness”

CQU data tool eases “mango madness”

Figure 1.  FruitMaps also acts as a repository for images. Figure 1. FruitMaps also acts as a repository for images. (Image: CQUniversity)

About the project

A CQUniversity-developed data tool is helping Australian mango growers determine a number of harvesting factors ahead of time: crop size, when to pick, and how many labourers to hire and cartons to purchase.

FruitMaps, developed by Professor Kerry Walsh and postdoctoral research fellow Zhenglin Wang, takes real-time data from multiple sources and displays them visually to provide a simple, free, online decision support tool adapted for use by farmers to assess fruit maturity and assist harvesting planning. The data collections that underpin the tool, which is in its pilot stage, are stored on QRIScloud, QCIF’s cloud computing service.

Mangoes are harvested within a short window each year in growing regions in Australia’s north, a time known to farmers as “mango madness” given the hectic schedule.

When do you call the harvest start? Too early and the fruit will not be an optimum eating quality. Too late and fruit will either drop off the tree and be damaged or not travel well.

FruitMaps was created to ease the pressure of “mango madness” as a decision support system to aid growers in planning their harvest more than a month in advance. The tool began life three years ago.

“We developed the basics of the system three growing seasons’ ago, we fleshed it out in the second season and we’re still expanding its capability in the third season, which is upon us now,” Prof. Walsh said.

FruitMaps’ pilot users are farm managers in Queensland and the Northern Territory.

Senior agronomist Adam Kent of Simpsons Farms in Goodwood, Queensland, near Bundaberg, has recently started using FruitMaps in preparation for the farm’s next mango harvest.

The farm has about 22,000 mango trees. Forecasting harvest date and crop yield and thus determining when and how many fruit pickers to hire will be Mr Kent’s primary use for FruitMaps.

“If you get your harvest right, crop loss is very minimal. If you get it wrong, it can be quite high,” Mr Kent said. “Our harvest is after Christmas in January. Labour resources at Christmas time and New Year’s is incredibly hard to manage.

“I see the value in forecasting harvest date to ensure resources at peak time are available. And that’s just scratching the surface: Version two of FruitMaps is just up and running and we’ll get more out of it by putting more data in.”

Mr Kent has recently logged the flowering data of Simpsons Farms’ mango trees into FruitMaps and has already mapped the property’s orchard blocks into the app: “It’s very easy to use,” he said.

FruitMaps was born as an accessory to the ‘F-750 Produce Quality Meter’, developed to non-invasively assess fruit maturity in the field and to assist with the decision to harvest.

F-750 is a field-friendly spectrometer that can assess fruit dry matter content, which is a measure of its starch and sugar content. The technology has been taken from CQUniversity research and development into commercial production by Felix Instruments – Applied Food Science, an American company that designs agricultural devices.

Kyle Hikalea of Felix Instruments has also led the shift from R Studio to a JavaScript and Python Django coding environment for the FruitMaps project.

F-750 data was originally collected in-field, then transferred from the device to a farm Excel workbook to allow calculation of averages and trends. FruitMaps was built to allow easy visualisation of this data, graphically on a farm map, and within tables and graphs (e.g. Figure 2, below).

“But we quickly found that FruitMaps was a foundation stone for all our work, and now we funnel temperature data (assessing fruit maturity by heat sums), data from in-field imaging units on level of flowering, fruit load and fruit sizing, all displayed and interpreted in the FruitMaps application,” said Prof. Walsh (e.g. Figure 3, below).

The tool also has a variant useful for research and is currently being used within the work of several CQUniversity (CQU) postdoctoral fellows and research higher degree students.

The FruitMaps team first heard about QRIScloud through QCIF’s CQU-based eResearch Analyst Jason Bell, who Prof. Walsh described as “very enthusiastic, very informative and very supportive.”

Mr Bell helped the project team with all aspects of QRIScloud, including setting up and configuring servers, and providing technical troubleshooting advice.

“QRIScloud has allowed for a central collection point, including images and crop maturity data. This site allows CQU researchers and collaborators, including farm managers, to upload data from remote locations, and to access data from anywhere,” Prof. Walsh said.

“The spatial display (measurements superimposed on farm maps, organised by orchard blocks) has allowed for new lines of thought on the agronomy underlying the spatial variability, and on management of the variability. This understanding led to the addition of analytics to the application, e.g. forecast of optimum harvest time.

“QRIScloud has provided access to large storage (currently a 1 TB data share), a system that is accessible outside the university network, and thus the development of a ‘pilot Web system’ at a low cost compared to hosting it on a commercial site.

“The QRIScloud resource has enabled us to keep enacting our dreaming of relevant features, with each new mango madness season bringing a new burst of grower and collaborator inputs and features.”

FruitMaps will continue to support an increased repertoire of activity, from automated image processing pipelines to tree crop yield mapping. The system also acts as a store of data, to be mined later.

Future potential uses include as a tool to capture information about tree cultivars and ages per orchard to guide industry groups in planning industry growth.

FruitMaps will also branch out to explore use with other crops important to Australia’s economy, such as citrus and bananas, and implementation is already underway for avocadoes.

Jason Bell continues to support FruitMaps and provides advice on the future direction of the project’s IT aspects.

FruitMaps has been supported by Horticulture Innovation Australia and the Australian Government Department of Agriculture and Water Resources under the Rural Research and Development (R&D) for Profit program (ST15005).



Professor Kerry Walsh
Theme Leader: Non-invasive Sensor Systems
Institute for Future Farming Systems

Research community:
Agricultural Science

Resources used:

  • QRISdata: 1 TB. Frequent access storage.
  • QRIScloud (total allocation):
    • 5 vCPUs

Fruitmaps fig2
Figure 2. Example of association of in-field F-750 dry matter readings to orchard blocks, colour coded in terms of meeting a harvest criterion (block in red is not yet ready for harvest). (Image: CQUniversity.)

Fruitmaps fig3
Figure 3. Example output of a field imaging pass with image processing to extract numbers of fruit per tree side. Each dot represents a tree side. (Image: CQUniversity.)

FruitMaps fig4
Figure 4. Field imaging rig operating in the Northern Territory. Images are passed via satellite link for processing (flower or fruit count) and displayed on FruitMaps. (Image: CQUniversity.)



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