Blog Post

Smelling soil: electronic nose to help manage farms

Georgia Fryer

A new prototype is being developed to ‘smell’ soil and turn gas emissions into microbial health metrics.

The Soil CRC is working with a team of researchers from the University of Tasmania to build a prototype eNose (electronic nose) for soil to determine its microbial community. 

Funded by the Australian government and 40 participants, the Soil CRC is a cooperative research centre that brings together scientists, industry and farmers to find practical solutions for Australia’s underperforming soils 

The physical structure and chemical nutrients of soil determine what organisms live within it. These organisms make up a ‘microbial community’ which changes the soils’ structure and chemical components.

According to Dr Robert Hardy from the University of Tasmania, each community releases a different kind of gas which reflects what the organisms are doing in the soil.

“The eNose aims to test the ‘proof-of-life concept’ that we can sense changes in the ground by smelling the gases these communities release,” he explained.

The prototype will use low-cost gas sensors, such as carbon monoxide, carbon dioxide and nitric oxide, to smell the soil which is then translated into microbial health metrics. The tool will also use basic environmental monitoring capability including DNA sequencing and soil moisture. 

“Currently, there are very few rapid and cost effective in-field techniques available to assess and monitor the health of soil microbial communities,” said Dr Shane Powell, University of Tasmania and eNose Project Leader.

This technology will be made available to farmers who will be able to use this information to make decisions on how best to manage their soils to be healthier, more productive and more resilient, according to Soil CRC.

The team are working with Birchip Cropping Group, FarmLink, Southern Farming System and Soils for Life to understand what farmers need and want from the eNose, Hardy explained. 

Hardy told One Mandate Group that they are also talking to farmers about how to breakdown the data to make it a useful and usable product. To ensure the data is simple, Soil CRC are running additional projects to test the presentation of complex information. 

Once the prototype is complete farmers from these groups will begin testing the technology in real-time. 

Whilst the prototype phase will end in nine months, funding will determine how long until the technology is available to all farmers. 

Even with additional funding, Hardy said the low-cost of the technology poses a problem as they are restricted to a low-budget design. 
NEWS
16 Feb, 2024
HARDI Australia has long been at the forefront of technological development for Australian farmers, giving way to a game-changing solution to the perennial agricultural problem of weed control.
By Jessica Martyn 16 Feb, 2024
When it comes to building and maintaining a successful farming business in Australia, implementing the right solutions to deliver and preserve essential resources like fresh water is crucial – and in these ponds, White International is an authority more than 70 years strong.
16 Feb, 2024
After five decades of consistently setting new standards in forage harvesting technology, including perfect cut quality, ideal chop length, and efficient kernel processing, CLAAS has recently released a special edition JAGUAR 990 TERRA TRAC model at Agritechnica.
By By Jennifer McKee 16 Feb, 2024
In today's fast-paced world, embracing technology has become essential for industries to thrive, and the Australian agriculture industry is no exception.
04 Dec, 2023
As a Landcare group, one of our main interests is to increase ecological resilience in our local area. Many of our landscapes have been cleared of vegetation in previous decades, so we have the task of supporting landholders to plant trees and shrubs to replace those that are missing. The benefits of revegetation are manifold. They include providing habitat for a range of native animals; controlling erosion and salinity; increasing farm productivity through nutrient cycling and shade and shelter for stock; and drawing down carbon from the atmosphere. But as weather patterns become more variable and we experience more climatic extremes, we need to think about which plant species – and which plant genetics – are most appropriate in our revegetation efforts. We are forced to ask will our local plantings be able to survive our future climate? Up until recently, it has been common for people to preference locally sourced seed when re-planting. This has been based on the idea that such plants will be best adapted to local conditions. However, there is growing understanding among scientists and land managers that we need to shift our focus to plants that can persist as the climate changes. This involves looking at which plant species are most appropriate by focussing on species that have a wide distribution and grow in our area and also in hotter areas, and increasing the genetic diversity of our tubestock so they have the best potential to adapt over successive generations. Our Landcare group has been tackling this issue for the past several years, working with scientists and AdaptNSW to find the best way forward. There are several key steps involved: understanding our local future climate, analysing whether selected local species can survive in climates like the one projected for our area, and sourcing seed for those likely-to-survive species from a range of areas to increase the genetic diversity of our plantings. Planting the right species with good genetic diversity gives revegetation projects the best chance of survival into the future. It’s not just about making sure the individual tubestock will grow, but that future generations of those plants will be able to survive and thrive. Luckily there are some good resources available for farmers, land managers and groups interested in climate ready revegetation. The Royal Botanic Garden Sydney has launched the Restore and Renew Webtool ( https://www.restore-and-renew.org.au/ ), which is a wonderful way for people to incorporate both climate change and genetic information when sourcing seed or plants. The NSW Niche Finder is invaluable for those who want to dig further into climate variables and species distribution ( http://www.nswnichefinder.net/ ). For future climate information, the CSIRO and Bureau of Meteorology have joined forces to provide a user-friendly online tool ( https://myclimateview.com.au/ ). And AdaptNSW also provides projected climate change information for different regions of the state ( https://www.climatechange.environment.nsw.gov.au/projections-map ). The Yass Area Network of Landcare Groups also has detailed information about our work on climate ready revegetation and relevant resources our website: https://yan.org.au/projects/climate-ready-revegetation-project As the climate changes, our revegetation efforts are more important than ever. And we need to make sure that they are ‘climate ready’ so that their benefits persist well into the future.
04 Dec, 2023
Some weeks, Amy Pascoe spends more time with mushrooms than humans. In this Q&A the Little Acre co-founder talks stereotypes, innovation, and the problem with “Grown in Australia” labels.
Show More
Share by: