Cover image of show EcoFarm Aotearoa

EcoFarm Aotearoa

Podcast by Ewan Campbell with co-host Stephen Brunton

English

Technology & science

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About EcoFarm Aotearoa

From paddock to podcast, EcoFarm Aotearoa showcases Ewan Campbell, a respected name in NZ farming, known for turning good science into better practice. With co-host Stephen Brunton, Ewan unpacks his audiobook and the big issues: nitrate and water quality, soil biology, mineral balance, genetics, pasture growth, animal health, and profitability. Real stories, clear takeaways—ready for the ute, cowshed, or tractor. Notes & links: efa.nz

All episodes

59 episodes

episode Is Your Favourite Politician Voting to Destroy New Zealand’s GE Free Future? artwork

Is Your Favourite Politician Voting to Destroy New Zealand’s GE Free Future?

In this episode, Stephen and Ewan sit down with John Carapiet from GE Free New Zealand to unpack the growing debate around genetic engineering, GMO regulation, and the future of farming in New Zealand. What begins as a discussion around the government’s proposed Gene Technology Bill and the new Hazardous Substances and New Organisms Amendment Bill quickly expands into a much bigger conversation about food sovereignty, corporate influence, farmer responsibility, environmental contamination, and the long-term future of agriculture. Through the EFA lens, the conversation explores whether New Zealand risks losing one of its greatest advantages — its GE-free food reputation — in pursuit of patented technologies and synthetic solutions. The discussion dives into soil biology, export markets, consumer trust, liability, glyphosate, animal welfare, and the growing tension between industrial agriculture and regenerative farming systems. The episode challenges the idea that more technology automatically equals better outcomes and asks a deeper question: are we solving the root causes of agricultural problems, or creating new ones? We discuss:• The proposed Gene Technology and HASNO amendment bills• Why New Zealand’s GE-free status matters globally• The difference between GMO, GE, and gene editing• Liability risks for farmers and contamination concerns• How patents and corporate interests influence agriculture• The connection between soil health, food quality, and human health• Why consumers still demand non-GMO food• The future of regenerative farming in New Zealand Our FREE E-Book!https://www.ecofarmaotearoa.nz/download-our-ebook/Listen To An EcoFarmer’s Discovery:https://open.spotify.com/show/3wIgUUghlsKIje76E5tjBA?si=b4aa009579a34ac1⁠

22 May 2026 - 1 h 28 min
episode Regenerative Farming Meets the Food Industry (feat. Rensha Bouwer) artwork

Regenerative Farming Meets the Food Industry (feat. Rensha Bouwer)

In this episode, Stephen, Ewan, and special guest Rensha Bouwer unpack the growing disconnect between food production, food quality, and the systems that sit between farmers and consumers. What begins as a conversation around award-winning pies, artisan cheese, and sourcing quality ingredients quickly reveals a much deeper issue: many of the best food producers and farmers are trapped inside commodity systems that fail to reward quality, animal welfare, and true nutritional value. Through the EFA lens, the discussion shifts toward reconnecting farming, food, and community. By focusing on healthy soils, thriving animals, low-stress handling, and direct relationships between producers and consumers, farmers can create premium products that stand apart from conventional systems. The episode explores how regenerative farming, local processing, and independent trade could reshape the future of food while reducing dependence on centralised industries and input-heavy agriculture. We discuss:• Why healthy soil and healthy animals create better quality food• How commodity systems hide the value of premium produce• The impact of stress and transport on meat quality• Why local food systems and direct trade matter• The challenges chefs face sourcing truly high-quality ingredients• How regenerative farming can improve both nutrition and profitability Our FREE E-Book! https://www.ecofarmaotearoa.nz/download-our-ebook/ Listen To An EcoFarmer’s Discovery: https://open.spotify.com/show/3wIgUUghlsKIje76E5tjBA?si=b4aa009579a34ac1⁠

29 Apr 2026 - 1 h 0 min
episode The Hidden Gold in Your Soil (And How to Unlock It) artwork

The Hidden Gold in Your Soil (And How to Unlock It)

In this episode, Stephen and Ewan unpack the hidden potential within our soils and challenge the conventional approach to fertility, pH, and input-heavy farming. What begins as a discussion on soil chemistry reveals a deeper issue: farmers are often managing only what’s immediately available, rather than unlocking the vast reserves already present in the soil. Through the EFA lens, the conversation shifts toward soil as a living, self-regulating system. By activating biology, increasing carbon, and removing limiting factors, farmers can convert locked-up minerals into plant-available nutrients, naturally balance soil function, and reduce reliance on expensive synthetic inputs, leading to more profitable and resilient farming systems. We discuss:• Why pH alone doesn’t tell the full story• The gap between available nutrients and total soil potential• How biology unlocks minerals like calcium• The role of carbon and organic matter in soil function• Reducing input costs by working with natural processes 🎧 Music Credit:Music: Exciting Trailer by Kevin MacLeodSource: https://incompetech.com/music/royalty-free/music.html [https://incompetech.com/music/royalty-free/music.html]

23 Apr 2026 - 35 min
episode Chapter 28: Reality Check | An EcoFarmers Discovery Audiobook Companion Podcast artwork

Chapter 28: Reality Check | An EcoFarmers Discovery Audiobook Companion Podcast

An EcoFarmer’s Discovery Chapter 28: Reality Check Thank you for listening to An EcoFarmer’s Discovery: The Companion Podcast, this is the final Ewan Campbell’s journey throughout the book. In this episode, Stephen Brunton and Ewan unpack the final chapter of the book, Chapter 28: Reality Check, bringing the series to a grounded and thought-provoking close. This conversation steps back from theory and dives into the practical realities of farming, challenging listeners to rethink assumptions, question systems, and take ownership of their results. Ewan emphasises the critical importance of benchmarking as a starting point for any farming system, highlighting how data collection across soil, water, and herbage provides not only a pathway for improvement, but also protection against misinformation, poor advice, and bureaucratic pressure. Without a clear baseline, progress becomes impossible to measure, and claims—whether from farmers or regulators—lack real substance. The discussion explores the barriers to adopting biological and regenerative practices, with a strong focus on mindset, education, and the willingness to confront uncomfortable truths. Ewan shares insights into how small, consistent changes—guided by real data—can lead to measurable improvements in productivity, environmental outcomes, and farm resilience over time. A key theme throughout the episode is the importance of working with nature rather than against it. From protecting soil biology to reducing reliance on sprays and external inputs, Ewan reinforces that long-term success comes from understanding natural systems and allowing them to function as intended. The episode also touches on the broader challenges facing modern agriculture, including industry narratives, policy pressures, and the influence of outdated thinking. Through honest reflections and practical examples, this final chapter encourages farmers to think independently, embrace learning, and move forward with confidence. At its core, this is a “reality check” not just for farming systems, but for the way we think about progress, responsibility, and success in agriculture. It’s a powerful conclusion that ties together the entire journey, leaving listeners with both clarity and motivation for what comes next. We discuss:• Why benchmarking and data collection are essential before making changes• How soil, water, and herbage testing guide better decision-making• The role of data in protecting farmers from poor advice and bureaucracy• Common mental barriers to adopting regenerative practices• Why protecting soil biology is key to long-term farm success• The importance of working with nature instead of against it• How independent thinking can drive better outcomes on-farm Powered by: EcoFarm Aotearoa – ⁠⁠⁠www.efa.nz⁠⁠⁠Link to our free ebook!https://www.ecofarmaotearoa.nz/download-our-ebook/Listen to An EcoFarmer’s Discovery:⁠ https://open.spotify.com/show/3wIgUUghlsKIje76E5tjBA?si=b4aa009579a34ac1⁠

17 Apr 2026 - 17 min
episode How Farmers Are Losing $21,000/ha Without Realising It artwork

How Farmers Are Losing $21,000/ha Without Realising It

In this episode, Stephen and Ewan unpack the growing tension between water quality, farm profitability, and the long-standing reliance on synthetic inputs. What starts as a conversation about environmental pressure quickly reveals a deeper issue, farm systems that are quietly depleting their own soil capital over time. Through real on-farm numbers and practical examples, Ewan breaks down how decades of nitrogen use have led to a steady loss of organic carbon, reducing the soil’s natural ability to hold nutrients and water. The result? Farmers aren’t just buying fertiliser, they’re replacing what their soil used to provide for free. Looking through the EFA lens, the discussion shifts toward rebuilding soil function through biology, carbon, and mineral balance. By increasing organic matter and restoring natural nutrient cycles, farmers can reduce input costs, improve production, and take back control of their systems, while also addressing environmental concerns like water quality. This episode highlights a powerful opportunity: by changing the system, farmers can move from constantly spending on inputs to actually rebuilding long-term value in their soil. We discuss:• The link between water quality issues and farm profitability• How decades of nitrogen use have depleted soil carbon• The hidden financial loss of declining soil organic matter• Why synthetic fertiliser replaces, rather than builds, fertility• The impact of low dry matter and “watery” feed on production Our FREE E-Book!https://www.ecofarmaotearoa.nz/download-our-ebook/Listen To An EcoFarmer’s Discovery:https://open.spotify.com/show/3wIgUUghlsKIje76E5tjBA?si=b4aa009579a34ac1⁠

15 Apr 2026 - 29 min
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