To Till or Not to Till - In Conversation with Jonathan Storkey
In the last episode of the series, plant ecologist Jonathan Storkey treats us to fascinating insights on biodiversity in production systems and soil microbial communities, emphasising how context is crucial when choosing your tillage approach. He shares his journey from birdwatching ecologist to leading weed scientist at Rothamsted Reseach, where he has been studying tillage and biodiversity interactions for over two decades. He dives into the concept of “functional biodiversity"- pollinators, predators, and microbes that support food production, and how tillage impacts those delicate systems. We explore the Rothamsted long-term systems trials, where contrasting tillage approaches across different soil types are revealing nuanced shifts in yield, weed pressure, soil carbon, and microbial succession. Jonathan explains how early-stage bacteria-dominated soils differ from more stable fungal systems, and how physical disturbance resets succession. He also explores glyphosate reliance (including glyphosate-resistant weeds), weed control trade-offs, IPM potential, and the resilience of different systems to extreme weather events.
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44:14
To Till or Not to Till - In Conversation with John Pawsey
In this episode with farmer John Pawsey, we talk about the role of tillage in organic systems, balancing weed and pest pressures, how regenerative overlaps with organic, and how diversity drives success. John shares his journey from conventional spraying to organic, mixed farming (over 25 years ago). He explains why he ploughs selectively (once or twice in a six-year rotation) and how organic farming pushes innovation through the limits of its standards. His approach is rooted in observation, adaptability, and profitability. We explore how he adjusts tillage depth based on weed type and the importance of bringing complexity into your rotation and not letting one problem dominate – in relation to weeds, pests and diseases. John reflects on reducing his sheep flock, soil health gains (now having up to 6% organic matter), and embracing Groundswell and regenerative ideas with an organic mindset. He describes a farming system built on context: some years min-till, others plough, all underpinned by leys, cover crops, and diversity in crops and drilling dates. His honesty about the learning curve, headspace shifts, and financial sustainability gives real-world clarity to the tillage debate.
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45:02
To Till or Not to Till - In Conversation with Julia Cooper
The third episode of the series welcomes the Organic Research Centre’s Julia Cooper who shares her expertise as a soil scientist. We look at soil health from a scientific perspective, focusing on nutrient cycling, carbon sequestration, and the nuanced role of tillage across different soil types and farming systems. Julia explains how soil health is context-specific, emphasising the importance of balancing biology, water management, and soil structure, rather than seeking one-size-fits-all solutions. We dive into how tillage affects water retention, soil productivity and microbial life, and discuss trade-offs between conventional and reduced tillage, looking at how practices such as direct drilling and cover cropping interact with climate and soil type, rather than existing as binary choices. We also touch on glyphosate versus plough-use in regenerative and organic systems, with Julia advocating for pragmatic, context-led decisions. Her insights offer a roadmap for farmers to make informed, resilient choices suited to their own land and goals...
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51:18
To Till or Not to Till - In Conversation with Mark Measures
This second episode with Mark Measures explores the role of tillage in organic systems, the misunderstood relationship between tillage and soil carbon, the balance between weed control and nutrient cycling, and how tillage fits into wider farming systems. Mark reflects on 40 years in organic advice, with deep roots in research, education, and farmer engagement. He argues that tillage, especially shallow and strategic, plays a crucial role in organic farming; not only for weed control and seedbed preperation, but also for stimulating nutrient release and building long-term stable carbon. He explores common misconceptions such as the oversimplified view that all tillage depletes soil organic matter, and explains that tillage can mineralise nutrients and stabilise humus, which is essential for carbon sequestration and water retention. He also challenges the belief that zero-till is the pinnacle of organic, pointing to climate and system-specific limitations. Mark advocates for strong rotations, fertility-building leys, and shallow, context-sensitive ploughing. He emphasises that tillage must be considered as part of a broader ecological, economic, and agronomic strategy - balanced, site-specific, and always evolving.
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To Till or Not to Till - In Conversation with Tom Martin
The first episode of our latest series introduces both Wallace Currie, guest podcaster from the Isle of Arran (search R2Kast), who will be chatting to guests throughout the series, and Cambridgeshire farmer Tom Martin. They discuss transitioning to no-till, the emotional and practical side of regenerative farming, redefining success through mistakes, and the value of community and biodiversity in agroecological systems. Tom shares his life journey from Universal Pictures to working back on the family farm, explaining how those soft skills transferred to his role as a regenerative farming advocate. The farm has gradually moved from full inversion tillage to almost no-till – driven by soil health, improving drainage and weed pressure, and a desire to farm more efficiently. The conversation explores how Tom integrates companion cropping, livestock grazing, and molasses and biochar to support the soil microbiome. Mimicking nature and context-driven change are key to his success and philosophy.
www.agricology.co.uk is a hub that explores moving towards farming systems that harness ecological processes & holistic approaches to help balance productive agriculture with enhancing the wider environment. In 2020, we chatted with some of the movers & shakers in the fields, labs & food supply chains; focusing on sustainable farming practices in ‘Agroecology in focus’ & speaking with innovating farmers ‘In the field.’ We returned in 2024 ‘In conversation with’ an exciting line up of farmers, researchers, advisors & industry figures who set out to explore optimal carrying capacity; the practical, philosophical & pertinent. Our latest 2025 series brings together a diverse range of voices to explore the complex & often polarising topic of tillage - to till or not to till?
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