Hitachi Vantara has applied AI and IoT to create smart irrigation management for Golden Grove Nursery, the largest supplier of citrus trees in Queensland. Real-time monitoring and analytics has improved irrigation and fertigation, reduced nutrient runoff and enabled higher quality citrus nursery trees.

Within months of implementation, the nursery improved its irrigation practices by 30%.

Golden Grove produces between 200,000 – 250,000 citrus nursery trees per year in Queensland. It provides up to 70% of the state’s citrus growers and commercial orchards. Queensland comprises 20% of Australia’s citrus industry, the country’s largest fresh fruit export industry. The industry exports up to AU$450 million of citrus a year.

Golden Grove has installed a combination of weight scales, soil moisture sensors, and analytics developed for horticulture use by Hitachi Vantara, Greenlife Industry Australia, Applied Horticulture Research, and ICT International. The solution measures and assesses moisture content in the growing media of pots, as well as crop water use, to provide insights that inform practices such as irrigation and fertilisation decisions.

The implementation includes a free-standing weather station to monitor the microclimate and a range of pH, temperature, soil moisture, weight, and electrical conductivity sensors to monitor water quality and leachate.

With the new implementation, water is automatically sampled and tested every 15 minutes. Before, Golden Grove had been testing twice a week, a procedure it had carried out manually for more than 30 years. Sensors have replaced bottles dipped into the dam and fingers poked into a pot.

Real-time data is uploaded to the cloud and presented on one screen – the Hitachi Supply Chain Control Tower, modified to holistically measure production nursery productivity and environmental stewardship by integrating sensor data, weather forecasts, and biophysical models. Nursery personnel can access depictions of predictive analytics such as irrigation requirements through Hitachi’s Lumada Manufacturing Insights.

“The best production nurseries have the best water,” said Golden Grove Nursery Director Wayne Parr. “With this project we are using the power of data to improve our irrigation management processes which will, in turn, reduce the overheads of water usage, improve environmental outcomes, and ensure we maintain compliance with regulatory requirements.”

“It is a privilege to support both sustainability and operational efficiency objectives in tandem, in an industry like agriculture and horticulture that has such a direct impact on society,” said Hitachi Vantara Senior Vice President of Business Transformation and Sustainability Maggie Laird. “We are committed to developing the solutions and analytics that sector-leading innovators like Golden Grove Nursery need to make critical data-driven decisions that solve pressing challenges like modernising to remain competitive whilst protecting the land and surrounding waterways and fostering sustainability in food production practices.”

“We’re now able to monitor the irrigation systems daily and understand exactly when to water so we can avoid root damage and make sure the nutrient mix is just right,” said Parr. “We’ve already been able to identify and adjust for over watering during the winter months of 2022, and through this summer with irrigation much more firmly under control.”

The project is part of a broader sustainable horticulture programme supported by the Australian Government’s National Landcare Programme as well as Hort Innovation, with co-investment from Applied Horticultural Research, Greenlife Industry Australia, AusVeg, Freshcare, Growcom, Australian Banana Growers Council, Hitachi Australia Pty Ltd and Hitachi Vantara LLC.