Episodes

Host Nakala Maddock sits down in Brocklesby with fine wool Merino producers Ron and Liz Koschitzke, a couple whose shared passion for soil health has completely reshaped their farm. In this episode, Ron and Liz unpack the practical steps that regenerated their soils, and the results speak for themselves.

This episode goes straight to the heart of what regenerative agriculture really means. Nakala sits down with Luke Harrington, founder of Re Gen Farming and a practitioner with more than 20 years in the regenerative space to explore why true regeneration isn’t just about soil. It’s about people. Luke shares his passion for rebuilding farming families, strengthening rural communities, and creating systems that allow farmers to thrive across generations. Together, they unpack practical, profitable...

In episode 50 of the Biological Farming RoundTable, host Nakala Maddock sits down with ECTOL founder and ag scientist John McKay. John walks us through the discovery of osmo protectants in marine algae, the first commercial frost protection applications in Australia, and how foliar nutrition evolved from horticulture into broadacre cropping and pasture systems. Along the way, he unpacks the big picture: why nutrient inefficiency and crop stress quietly and significantly robs agriculture of their...

In Episode 49 of the Biological Farming RoundTable host Nakala Maddock is rejoined by David Hardwick from Soil Land Food and Luke Harrington from Re-Gen Farming. This episode is part two of the Managing Regenerative Transition series, where the team unpack the types and stages of transition or change, what to expect and where to go to get resources and support. Luke and David share their top tips to help you regain control of your farming operation.

Biological Farming RoundTable host Nakala Maddock is joined by David Hardwick from Soil Land Food and Luke Harrington from Re‑Gen Farming in Episode 48. In part one of this two‑part series, they explore the motivations and challenges behind transitioning to regenerative farming. They also reveal some unexpected factors to watch for — insights that can help you regain confidence and control in your farm management journey.

In the first episode of the Biological Farming RoundTable for 2026, Nakala sits down with NutriSoil’s tech‑savvy Nige for a candid, sometimes confronting, and ultimately empowering conversation about the rise of AI in agriculture. What begins as a simple chat about who owns AI quickly opens into a deeper exploration of ethics, power, risk, and opportunity. Nakala and Nige unpack the major players behind today’s AI platforms, how algorithms shape the answers we receive, and why farmers need to s...

In Episode 46 of the Biological Farming RoundTable Podcast, Nakala and Shelley travel to Pingrup, in the southeast of the WA wheatbelt. They are joined by David Steele and his wife, Deb, who are multigenerational farmers running a cropping and sheep enterprise. David and Deb recall when the soil had that earthy smell and have their sights set upon bringing the aroma back to the farm. When David relied mainly on synthetic fertilisers, he watched his soil health steadily decline. He shares the st...

In Episode 45 of the Biological Farming RoundTable Podcast, Nakala continues her conversation with Gundi Rhoades in part two of The Microbe Solution. This episode dives deeper into Gundi’s exploration of the powerful connection between soil microbes and human health. We examine how synthetic compounds have disrupted microbial balance and how farmers play a critical role in restoring it. Gundi shares compelling insights on why rebuilding soil biology is not just achievable but essential for the ...

In this eye-opening episode of the Biological Farming RoundTable podcast, host Nakala Maddock sits down with regenerative vet Dr Gundi Rhoades to explore the profound ripple effects of historical decisions and technological advancements on soil biology and by extension, human and animal health. Gundi shares her remarkable journey of discovery, revealing how disruptions in soil microbes have led to nutrient imbalances linked to disease, autoimmune disorders, anxiety, and depression. In Part 1 of...

In this special episode of the Biological Farming RoundTable, we’re turning the tables. Host Nakala Maddock swaps seats to become the guest, with NutriSoil’s communication coordinator, Shelley Scoullar, stepping in behind the mic. What unfolds is a candid and spirited conversation between two passionate advocates for healthy farming systems. From the marvels of microbes and nutrient-dense food to the often-controversial topic of irrigation, Nakala and Shelley don’t shy away from the big issues. ...

In this compelling continuation, Nakala and John Kempf delve into the concept of Active Immunity in plants—a state made possible by biologically active soils rich in diverse microorganisms. Discover how microbial compounds, such as lipids and phytochemicals play a pivotal role in fostering complete resilience against diseases and pests. Tune in to uncover how soil health drives plant vitality!

In this episode, Nakala is joined by John Kempf, a pioneering voice in regenerative agriculture and a trusted mentor to farmers worldwide. Together, they delve into the transformative concept of the Plant Health Pyramid, an innovative framework developed through extensive research by John and the team at Advancing Eco Agriculture. The Plant Health Pyramid reveals the secrets to cultivating resilient, thriving plants that are naturally immune to diseases and pests. In this episode—the first in a...

In this episode, we sit down with Dan Kittredge, farmer, founder of the Bionutrient Association, and educator behind the world’s first Certificate-Level Masterclass in Nutrient-Dense Food. Dan is at the forefront of groundbreaking research, measuring and defining food quality—and linking it directly to how it’s grown. This conversation dives deep into the medicinal potential of food, exploring how growing food in the the right growing conditions can not only enhance human health but also revers...

Nakala visits Don Jarvis, a dedicated dairy farmer from Towong near Corryong in the picturesque Snowy Valley. Don reveals his simple methods for transforming acidic, compacted soils into balanced, self-regulating ecosystems through the power of biology. Alongside his wife Denise and son Jamie, Don operates an organically certified dairy farm, working in perfect harmony with nature. Join us as Don shares his journey and the steps he has taken to achieve a fulfilling and sustainable farming practi...

In this episode we give you an inside view of what WORM FEST 2024 is about. How it came to be, why and what to expect! Joel Williams talks about his love of amino acids and biostimulants with nutrient delivery and how at WORM FEST 2024 he is going to be diving into the science of what powerful tools lie beneath these often-mysterious names. WORM FEST 2024 is likened to Ground Swell a UK, Festival that provides a forum for farmers, growers, or anyone interested in food production and the enviro...

In this episode of our podcast, Nakala and David offer a rare glimpse behind the scenes at NutriSoil headquarters. We’re introducing you to a key figure in our team, the ‘Worm Whisperer’ himself, Darren Maddock. While Darren might be a bit of a hidden gem in our operations, his contributions are vital to the NutriSoil business. Darren delves into his reasons for taking on the family worm business, sharing his passionate views on farming and his aversion to chemical usage in agriculture. His com...

In this inspiring episode, we delve into the story of Callum Lawson, a visionary who transformed a struggling 3000-acre grazing property in North Central Victoria into a flourishing ecosystem. Facing the challenge of an overstocked land, Callum embarked on a mission to revive the farm. This journey wasn’t just about restoring the land; it was a commitment to producing healthy food, fostering environmental sustainability, and ensuring profitability. Discover the strategic steps Callum took, the v...

In Episode 35 host Nakala Maddock interviews three amazing guests about the importance of building networks and community ties for farmers and their families. During this podcast our special guests discuss tools for developing resilience to weather the next tough time when it comes along, and what you can do to help someone who might be struggling. A big thanks to Luke Harrington, Brad and Katie Collins for allowing themselves to be vulnerable for this special episode of the Biological Farming R...

This month's podcast takes the Biological Farming Roundtable podcast to Ingham QLD, for the Regenerative Cane Farmers Forum. Host Nakala Maddock is joined by agroecologist David Hardwick from Soil Land Food, they speak with cane farmer Ray Zamora from Tully about addressing soil compaction and declining soil health in the sugar cane industry. Ray shares his soil health learning journey, and how invention, biology and networking earnt him the right to farm with less Nitrogen, without compromising...

This month's podcast takes the Biological Farming Roundtable podcast to Ingham QLD, for the Regenerative Cane Farmers Forum. Host Nakala Maddock is joined by agroecologist David Hardwick from Soil Land Food, they speak with cane farmer Ray Zamora from Tully about addressing soil compaction and declining soil health in the sugar cane industry. Ray shares his soil health learning journey, and how invention, biology and networking earnt him the right to farm with less Nitrogen, without compromising...

In episode 32 of the Biological Farming Roundtable host Nakala Maddock is joined by Robin Tait an independent consultant in Tasmania, as they chat with Aiden and Sarah Coombes. Aiden manages Westmore a 3400 ha grazing property owned by Greenhams and is involved in implementing the Never Ever Beef Program, while Sarah manages properties owned by the Coombes. Located in the northwest of Tasmania the climate has a unique set of challenges, which the couple meets head-on and are thriving. The podcas...

In episode 31 of the Biological Farming Roundtable Podcast, host Nakala Maddock is joined by Jane Slattery co-founder of natural intelligence farming. Nakala and Jane speak with cattle grazier Dale Retschlag from Biloela in Queensland. Dale is the president of Central Queensland Landscape Alliance, a farmer led regenerative restoration group and explains his journey to being at peace with a non-negotiable synthetic free farming system. The podcast covers all things involved in the regenerative m...

Jacob Wolki is an entrepreneur from Albury Wodonga. Treating animals with respect, family and medicinal food drive his quest to build a community where farmers and consumers are connected by shared values. He raises animals, processes them, sells online, has a self-serve butchery, and runs farm tours. He is changing the system of how farmers share their produce, which is what we discuss in this episode.

Robin Tait is an agronomist from Tasmania, after ten years in traditional cropping agronomy Robin studied a Nuffield Scholarship which took her all over the world looking at different farming systems. Robin now works as an independent consultant specialising in working with multispecies cover crops and now, although early days, working with people’s mindsets and decision making tools as part of a team which is building in Natural Intelligence Farming led by Jane Slattery. Robin is also a key mem...