Blog Layout

Taking the plunge

Soil monitors probe global water scarcity problem 

In the context of climates changing, and the general global trend towards water scarcity and aquifers running dry, soil water management has become more important than ever before.

 

This is where Sentek Technologies, an Australian-born company with a presence in more than 80 countries, is working hard to meet these challenges of the future. 

 

With headquarters in Adelaide, they are doing this by designing, developing, manufacturing, and globally distributing world-class technologies for measuring and managing soil moisture, salinity, and temperature – by measuring the ‘drinking speed’ or crop water-use. 

 

Farmers use Sentek’s unique technologies and tools – such as TriSCAN, a fertiliser/salinity, temperature, and soil water monitoring system, which takes readings on a near-continuous basis, to monitor groundwater movement, generate exceptional research data, and gain vital insights into crop water usage to make better irrigation decisions. 

 

Sentek was co-founded in 1991 by Peter Buss after he developed a commercial irrigation scheduling service for irrigators (ICMS) for the South Australian Department of Agriculture in 1986. 

 

This involved taking manual readings of water in soil and crops. Over time this developed into his own consultancy business. 

 

Peter, who has a Bachelor’s degree of Engineering in International Agronomy and a Master of Science in Rural Science among other qualifications, talks of the challenges of working with data in the pre-internet age.

 

He used fax machines to transmit data from the probes he developed with an electronic engineer while working one-on-one with onion farmers in and around Adelaide – an example of the customer-driven approach that has led to Sentek’s continuous improvement and success. 

 

Now he is focused on “Irrigation 4.0”, which leverages Industry 4.0 process optimisations such as the cloud, artificial intelligence, and “big data” in combination with tried-and-tested human management methods.

 

Other elements include remote sensing for crop measurement, weather forecasting. and irrigation system performance.

 

To what end? Why should farmers improve their water management?

 

The on-farm reasons are optimising input sources such as water, power (electricity or diesel) and fertiliser and maximising farm outputs such as yield, crop quality. and environmental sustainability. The overarching reason is to perform better irrigation management.

 

The statistics on agricultural water use draw into stark relief the need to find further efficiencies. 

 

Earth’s Future, the journal of the American Geophysical Union, recently published an article saying “agricultural water scarcity is expected to increase in more than 80 per cent of the world's croplands by 2050.”

 

Given “agriculture irrigation accounts for 70 per cent of water use worldwide and over 40 per cent in many OECD countries,” according to the Organisation for Economic Co-operation and Development, and given it takes “about 1300 cubic metres of water to produce a ton of wheat and 16000 cubic metres of water to produce a ton of beef”, according to World Energy 46, the time is right for growers and primary producers to put more emphasis on their irrigation management strategies.   

 

Most people tend to over-irrigate, Peter says, and this presents problems beyond water use. 

 

Peter is a strong advocate for taking a systemic approach to fixing systemic issues when it comes to irrigation, which he says is not being discussed. 

 

For example, over-irrigation also flushes out fertiliser from the soil below the root zone, leading to the pollution of groundwater reserves and waterways.

 

Disciplined water management therefore not only increases crop yields and quality but also decreases expenses on a wide variety of fronts beyond water itself. 

 

In a throwback to Sentek’s original story, the company demonstrated its innovative precision agriculture solutions for onion, corn, cotton and soybean growers and consultants in Texas. 

 

Thanks to their easy-to-install Drill & Drop probes, Sentek enabled the agronomy team to track root development and ensure water was delivered to the right depth without wastage through excessive drainage.

 

Closer to home, Sentek worked with McLaren Vale’s popular Wirra Wirra winery to measure their soil water levels precisely, including Regulated Deficit Irrigation, to achieve maximum water use efficiency, and required grape quality. The outcome enabled wine improvements to Ultra Premium grades. 

 

Impacts are increasingly global, with over 80 percent of sales now international. This expansion, the product range and the rate of product commercialisation is reflected in the many innovation, export sales and marketing awards Sentek has picked up. 

 

Peter Buss has put his academic experience to good use, having been involved with almost 20 published journal articles related to irrigation and soil management. An example is the 2018 paper in Acta Horticulturae that showed the benefits of using the award-winning IrriMAX software to “Visualise the water and salt distribution within the soil in 2 dimensions” among potato plants. 

 

Sentek’s IrriMAX Live software works with any internet-connected device, and integrates soil moisture, salinity, and temperature data. The information is viewed through a range of graphs, simple to read water gauges, and a map view showing the probe locations and their irrigation priority within farm management zones.

 

In an article presented at the 2016 Irrigation Australia International Conference and Exhibition, Sentek’s Drill & Drop probes are used to compare how water travelled through two separate sections of turf at Adelaide Zoo – one exposed to public footfall and one sheltered from it. The probes found, among other things, that “significant overwatering (of the sections of turf) were occurring,” leading Peter and the paper’s co-authors to estimate potential water savings of up to “10.5 Megalitres of water worth around $25,000 for the year” – or 30 to 50 per cent of Adelaide Zoo’s annual water use. 

 

Peter is also involved with the Australian Water School, having presented webinars on how soil moisture sensors such as Sentek’s can provide greater insights into crop-water-soil dynamics. 

 

In a world where water use has come under more and more scrutiny, Peter Buss is widely credited for pioneering the use of soil water dynamics to achieve improved economic and environmental outcomes for growers. An adoption that is world-wide and growing rapidly.


By By Harley Paroulaksis, CEO Paspalis, CEO Darwin Innovation Hub May 20, 2023
Getting asked what we look for in deals is one of the most common questions I get as an investment manager.
May 20, 2023
The Small Business Association of Australia is dedicated to supporting SMEs, acting as their voice to government and helping them connect, grow, and prosper well into the future.
By By Shiv Meka May 20, 2023
Sensibles may sound like science fiction, but this revolutionary technology is making waves in aged-care facilities, and has the potential to transform health monitoring at scale.
March 28, 2023
Alice Springs and the deserts of Central Australia don’t sound like a food basket, but they are for businesswoman and bush foods innovator Rayleen Brown.
By Gillian Cumming March 28, 2023
A new report aims to lay the foundations for a deeper and more meaningful and equitable relationship between Indigenous and non-Indigenous Australians in the mining transition sector.
By Dr Saraid Billiards - CEO of the Association of Australian Medical Research Institutes. March 27, 2023
If the health and medical research sector in Australia is to move forward, it must address gender equity, diversity, and inclusion- which means making the sector a safe and inclusive workspace for all.
January 27, 2023
A ground-breaking sheep technology system is bettering the businesses and lives of Australian sheep breeders thanks to a revolutionary combination of software, hardware, and support never before combined into one cohesive unit.
January 27, 2023
ANCA took an early view to look beyond Australia’s shores whilst developing advanced manufacturing technologies now viewed as ‘business as usual’
By Andrew Downs January 27, 2023
As Australia grapples with a critical skills shortage, many are now encouraging young people to embrace a career in the trades, where a wealth of opportunities awaits.
By By Ben Kehoe January 27, 2023
In 2016 I published a blog article titled Moonshots for Australia: 7 For Now. It’s one of many I have posted on business and innovation in Australia. In that book, I highlighted a number of Industries of the Future among a number of proposed Moonshots. I self-published a book, Innovation in Australia – Creating prosperity for future generations, in 2019, with a follow-up COVID edition in 2020. There is no doubt COVID is causing massive disruption. Prior to COVID, there was little conversation about National Sovereignty or supply chains. Even now, these topics are fading, and we remain preoccupied with productivity and jobs! My motivation for this writing has been the absence of a coherent narrative for Australia’s business future. Over the past six years, little has changed. The Australian ‘psyche’ regarding our political and business systems is programmed to avoid taking a long-term perspective. The short-term nature of Government (3 to 4-year terms), the short-term horizon of the business system (driven by shareholder value), the media culture (infotainment and ‘gotcha’ games), the general Australian population’s cynical perspective and a preoccupation with a lifestyle all create a malaise of strategic thinking and conversation. Ultimately, it leads to a leadership vacuum at all levels. In recent years we have seen the leadership of some of our significant institutions failing to live up to the most basic standards, with Royal Commissions, Inquiries and investigations consuming excessive time and resources. · Catholic Church and other religious bodies · Trade Unions · Banks (and businesses generally, take casinos, for example) · the Australian Defence Force · the Australian cricket teams · our elected representatives and the staff of Parliament House As they say, “A fish rots from the head!” At best, the leadership behaviour in those institutions could be described as unethical and, at worst….just bankrupt! In the last decade, politicians have led us through a game of “leadership by musical chairs” – although, for now, it has stabilised. However, there is still an absence of a coherent narrative about business and wealth creation. It is a challenge. One attempt to provide such a narrative has been the Intergenerational Reports produced by our federal Government every few years since 2002. The shortcomings of the latest Intergenerational Report Each Intergenerational Report examines the long-term sustainability of current government policies and how demographic, technological, and other structural trends may affect the economy and the budget over the next 40 years. The fifth and most recent Intergenerational Report released in 2021 (preceded by Reports in 2002, 2007, 2010 and 2015) provides a narrative about Australia’s future – in essence, it is an extension of the status quo. The Report also highlights three key insights: 1. First, our population is growing slower and ageing faster than expected. 2. The Australian economy will continue to grow, but slower than previously thought. 3. While Australia’s debt is sustainable and low by international standards, the ageing of our population will pressure revenue and expenditure. However, its release came and went with a whimper. The recent Summit on (what was it, Jobs and Skills and productivity?) also seems to have made the difference of a ‘snowflake’ in hell in terms of identifying our long-term challenges and growth industries. Let’s look back to see how we got here and what we can learn. Australia over the last 40 years During Australia’s last period of significant economic reform (the late 1980s and early 1990s), there was a positive attempt at building an inclusive national narrative between Government and business. Multiple documents were published, including: · Australia Reconstructed (1987) – ACTU · Enterprise Bargaining a Better Way of Working (1989) – Business Council of Australia · Innovation in Australia (1991) – Boston Consulting Group · Australia 2010: Creating the Future Australia (1993) – Business Council of Australia · and others. There were workshops, consultations with industry leaders, and conferences across industries to pursue a national microeconomic reform agenda. Remember these concepts? · global competitiveness · benchmarking · best practice · award restructuring and enterprising bargaining · training, management education and multiskilling. This agenda was at the heart of the business conversation. During that time, the Government encouraged high levels of engagement with stakeholders. As a result, I worked with a small group of training professionals to contribute to the debate. Our contribution included events and publications over several years, including What Dawkins, Kelty and Howard All Agree On – Human Resources Strategies for Our Nation (published by the Australian Institute of Training and Development). Unfortunately, these long-term strategic discussions are nowhere near as prevalent among Government and industry today. The 1980s and 1990s were a time of radical change in Australia. It included: · floating the $A · deregulation · award restructuring · lowering/abolishing tariffs · Corporatisation and Commercialisation Ross Garnaut posits that the reforms enabled Australia to lead the developed world in productivity growth – given that it had spent most of the 20th century at the bottom of the developed country league table. However, in his work, The Great Reset, Garnaut says that over the next 20 years, our growth was attributable to the China mining boom, and from there, we settled into “The DOG days” – Australia moved to the back of a slow-moving pack! One unintended consequence of opening our economy to the world is the emasculation of the Australian manufacturing base. The manic pursuit of increased efficiency, lower costs, and shareholder value meant much of the labour-intensive work was outsourced. Manufacturing is now less than 6% of our GDP , less than half of what it was 30 years ago!
More Posts
Share by: