Regenerative Agriculture Podcast

In this episode of the Regenerative Agriculture Podcast, John interviews Joel Salatin, a well-known lecturer and author and the co-owner of Polyface Farms in Swoope, Virginia. Polyface Farms is a “diversified, grass-based, beyond organic, direct marketing farm”. Joel is well-known for his highly engaging public speaking style and is the author of twelve books relating his experience as a self-described ‘lunatic farmer’. In this episode of the podcast, we visit the challenges of mainstream, conventional agriculture through Joel’s paradigm-shifting lens, and learn why farmers are beginning to shift to a regenerative model. Joel also describes how farmers can learn the skills of marketing, communications, and public speaking, and broaches the uncomfortable topic of planning for farm inheritance and succession.  Joel’s worldview, informed by both real-world experience and immersion in a broad range of literature from philosophy, history, and religion, to current events and business, forms the foundation of his fa

In this episode of the Regenerative Agriculture Podcast, John interviews Dr. Rattan Lal, an acclaimed soil scientist, researcher, and author. Dr. Lal has published hundreds of journal articles on soil ecosystems, effects of tillage, global food security, sequestering carbon in the soil, and more. In the early 1990s, Dr. Lal was a pioneer of the now mainstream idea that healthy soils are a defense against rising levels of carbon dioxide in the atmosphere, leading groundbreaking research in Africa and later in South America.  After a long and storied career, he is currently the Director of the CFAES Carbon Management and Sequestration Center, where he works with graduate students to research soil carbon sequestration and climate change. In this episode of the podcast, Dr. Lal provides an in-depth description of the function of carbon.  Carbon is the determinant of healthy soil. As Dr. Lal describes, the reason that soil life is much more diverse in healthy soil is because organic carbon is the food for soil org

In this episode of the Regenerative Agriculture Podcast, John Kempf interviews Ray Archuleta, an outspoken proponent of healthy soil systems and the founder of Understanding Ag and the Soil Health Academy. Ray has spent decades working in conservation agriculture and, in this episode, he describes his journey from seeing nature as a competitive entity, in which all else should be killed in order for the desired crop to survive, to his understanding today that nature thrives on diversity and collaboration.  Ray describes how new science and technology have identified many examples of collaboration in agroecology, like arbuscular mycorrhizal fungi, which share water resources and transport energy and nutrients from organism to organism. Even under stress conditions, these microbes provide water to the plant, an example of nature sharing resources rather than competing. He provides examples of research that illustrate fields with a diversity of species showing greater resilience and yields than monoculture plant

In this episode of the Regenerative Agriculture Podcast, John interviews Dr. Arden Andersen, who holds a Ph.D. in Agriculture and Biophysics. In this conversation on biophysics, John and Dr. Andersen explore topics such as the role of calcium, soil compaction, pest pressure, and more from the perspective of biophysics and energy. Dr. Andersen’s career in agriculture started in childhood on his family’s holistically managed dairy farm. This experience provided him with the daring to question accepted science and to forge new paths. While earning a bachelor’s degree in agriculture, Dr. Andersen noted that his father’s herd suffered from none of the dairy diseases he was studying, allowing him to draw a correlation between disease immunity and herd health. Through further study, he determined that immunity is influenced by nutrition and that this principle is the same for plants and mammals, including humans. Dr. Andersen dove into the world of biophysics, learning from pioneers such as Dr. Philip Callahan, Dr.

In this episode of the Regenerative Agriculture Podcast, John Kempf interviews Dr. Jill Clapperton, a plant physiologist with an intuitive understanding of the workings of the rhizosphere and an abundance of metaphors that clearly explain these mechanisms. Dr. Clapperton worked as the Rhizosphere Ecologist at AgriFood Canada and more recently started her own company, Rhizoterra, where she researches agronomic practices and develops technologies for scientific on-farm decision making. John and Dr. Clapperton delve into the science of the rhizosphere, discussing how the plant drives and controls the actions that transpire there. Each plant species exudes its own signature of carbon compounds, including sugars, amino acids, lipids, nucleic acids, and other compounds, which Dr. Clapperton refers to as ‘carbon skeletons’. The plant then works with the rhizosphere to add the ‘meat’ of mineral nutrients, oxygen, hydroxyl groups, and more to make the long or short carbon chain ‘skeletons’ functional. Dr. Clapperton d

In this episode of the Regenerative Agriculture Podcast, John interviews Dr. Norman Uphoff, who was the director of the Cornell International Institute for Food, Agriculture and Development from 1990 to 2005, and is currently Professor Emeritus of Government and International Agriculture at Cornell University. In this episode, Dr. Uphoff relates how he learned about the System of Rice Intensification in 1993 when he was sent to Madagascar as part of an initiative led by Cornell University to develop a program to increase rice yields and help rural development. There Dr. Uphoff learned about the System of Rice Intensification, a method of growing rice that was claimed to increase yields dramatically that had been developed by a French Jesuit priest named Father Henri de Laulanié. Dr. Uphoff was skeptical that the full extent of the reported yields was true but thought the method merited further investigation and developed a plan for the Cornell program to run trials. The System of Rice Intensification focuses

In this episode of The Regenerative Agriculture Podcast, John interviews Jason Mauck, an Indiana corn, soybean, wheat, and hog producer who thinks outside the borders of convention and who has pioneered a number of innovative practices. Jason describes the guiding force behind his experiments and innovation as the desire to gain as much control over the variables in farming as possible. Rather than embracing traditional planting and application methods, Jason experiments with new approaches to farming, measuring whether they give him more resilience and control over his inputs and yields. Jason is passionate about relay cropping, the practice of having a second crop growing before the first crop is harvested. An example of this is a cool grass cereal such as wheat or rye planted with a summer annual of corn or soybeans. He describes his experimentation with this approach, from the original plan of planting two crops together and doing all of the same things he would do for each crop planted separately, to his

In this episode of the Regenerative Agriculture Podcast, John interviews French agronomist, Olivier Husson, whose pioneering work on soil pH and redox potential provides a groundbreaking look at what goes on within the soil.  Olivier has focused a large part of his research on the study of reduction-oxidation (redox) in rice production, where the crop is grown in paddies in anaerobic conditions. These conditions are ideal for the study of Eh. Eh, the short notation for redox potential, is a measurement of the availability of electrons, whereas pH is a measurement of the availability of protons. In order to gain a full picture of the soil’s nutrient profile, we need to assess both the pH and the redox potential at the same time.  In this interview, Olivier details:  the difference between Eh and pH  how the Eh profile changes based on photosynthetic activity  how electrons in the soil are key to reversing oxidation and absorbing nutrition from soil mineral reserves how Eh determines water absorption capacity

In this episode of the Regenerative Agriculture Podcast, John Kempf interviews Claudia Carter, Executive Director of the California Wheat Commission. Originally from Ecuador, Claudia leads research around the marketability of California wheat and helps to develop and maintain domestic and international markets for this commodity. Through a partnership with the University of California Davis, the California Wheat Commission tests in-field performance of wheat yields and quality. With their in-house research lab, the Commission also develops pasta, bread, and other products to test wheat varieties for performance.   In this episode, Claudia describes her educational journey in cereal sciences, and her focus on the durum quality parameters that processors need to develop a good pasta. John and Claudia discuss biofortification, the process of breeding wheat varieties for a specific nutritional profile. For years, bakers have demanded wheat varieties with lower mineral content, since the presence of minerals inter

In this episode of the Regenerative Agriculture Podcast, John Kempf interviews plant pathologist Dr. James White of Rutgers University, whose work provides a new perspective on plant pathology, susceptibility to soil-borne pathogens, and plant absorption of nutrients. Dr. White explains how endophytes, non-pathogenic fungal and bacterial organisms present in all plants, are a mechanism by which plants can absorb complete molecules, internalize and propagate soil-borne microbes, and nullify pathogenic organisms.  In the interview, Dr. White describes how plants cultivate microbes at the meristem, or root tip, where exudates are created. In this zone, these endophytes further attract and cultivate microbes from the soil in the rhizophagy cycle, from rhizo- meaning ‘root’ and -phagy meaning ‘eating’. Through this process, plants attract and internalize soil-borne microbes. The microbes are then internalized by the plant and deliver nutrients from the soil directly to the roots. Dr. White relates how this endophy

In this podcast interview, host John Kempf and Canadian farmer Derek Axten discuss Derek’s path to profitable farming practices. This journey started in 2007 when Derek made a trip to Dakota Lakes Research Farm where he witnessed soil health and water infiltration levels beyond which he knew were possible. In subsequent trips to Dakota Lakes and visits to Gabe Brown’s ranch, Derek learned soil and crop management principles which he’s adapted to his own farm. In this episode, learn about the methods and systems Derek has applied and how they’ve changed the trajectory of his farm from soil health and economic perspectives.  Derek describes his system of inter-cropping and the management practices he employs to increase soil infiltration. He and John also discuss controlled traffic farming, Derek’s liquid fertilizer regimen, and decreasing the use of applied nitrogen and other synthetic inputs. Listen to learn how Derek approaches: Soil management tactics and results   Water infiltration Intercropping with two

Before we present our newest episode, we have a request for you. As we complete our second season of the Regenerative Agriculture Podcast, we have a supporting base of over 5,000 listeners who engage with our episodes shortly after we post them. We now ask for your feedback on the podcast, whether there are topics you’d like to hear more about, and what suggestions you have for improvement. We’ve put together a survey that allows you to tell us what you think. Here’s the link: advancingecoag.com/podcast. We are appreciative of your feedback and we look forward to implementing it to make the Regenerative Agriculture Podcast ever better! Thank you for permitting the interruption…now, on to the show notes! In this episode of the podcast, John interviews Dan Kittredge, the Executive Director of the Bionutrient Food Association, whose development of sustainable agriculture techniques has connected him to farmers worldwide. In this interview, John and Dan delve into the science of growing crops as it relates to hum

In this episode of The Regenerative Agriculture Podcast, John Kempf interviews Walter Jehne, an Australian soil microbiologist and the Director of Healthy Soils Australia. Walter has written and taught extensively about the earth’s soil carbon sponge and hydrology as they relate to climate change. Walter provides context for the extreme weather events we are experiencing, and clearly identifies the role that water plays as a climate regulator. He describes how we can manage water to safely and naturally cool the planet and regulate climate change. Walter has developed a perspective on the impact that farmers can have on the climate that is different than the dominant narrative on carbon sequestration. While carbon sequestration is an important piece of the puzzle, Walter explains how managing the way our soils retain and hold water has a much bigger impact due to the way the hydrological system functions as a regulator for the planet. Walter describes how specific tactics in the management of water in our soi

In this episode of the Regenerative Agriculture Podcast, John interviews French agronomist, Pierre Weill, who created a feed company in 1992 in French Brittany with the intention of producing health-oriented animal nutrition. He then went on to co-found a nonprofit association called Bleu-Blanc-Cœur, which connects all the actors involved in the food chain to help producers and consumers connect the dots between reduction in disease and the quality of food production.   Pierre’s fascinating research trials examine the differences in human health when animal products from animals fed high-quality forage-based diets are consumed versus products from conventionally fed animals. In one group of six trials, conventionally fed animals were fed a diet of corn and soybeans, and the animals with a healthy diet were fed high-quality forages and seeds. Consumers in the trials were divided into control groups who ate milk, eggs, and other animal products from the conventionally fed animals, and experimental groups that a

John Kempf and Vernon Peterson take the stage for a live-recorded conversation at the inaugural Acres U.S.A. Healthy Soil Summit, held at the University of California Davis Conference Center on August 21, 2019, for this Regenerative Agriculture Podcast episode.  Vernon’s experiences from 30 years of growing tree fruit and other crops on both conventional and organic acreage in California’s water, weather, and labor-challenged environment inform the wisdom he posits here.  Peterson was the recipient of the Grower of the Year Award from the California Certified Organic Farmers Association and the Organic Produce Network in 2017. He farms 300 acres of stone fruit, including peaches, plums, nectarines, and apricots. Vernon’s operation also packs fruit for almost 80 neighbors, including stone fruit, pomegranates, and citrus.  Listen to hear Vern’s strategies for activating employees to achieve their fullest potential, his knowledge of organic fruit production and marketing, and a call to farmers to tell their stor

Record rainfall has resulted in an unprecedented number of unplanted acres in 2019. Farmers must now consider how best to manage these fields for the remainder of the season. In an otherwise fallow year, cover cropping options abound during a unique summer planting window. In this episode of the Regenerative Agriculture Podcast, John Kempf hosts a panel of American Midwestern agronomists and farmers, Steve Groff, David Kleinschmidt, Brad Hobrock, and David Chance, to discuss wet weather, the inability to plant in sodden areas and the options to sow cover crops in empty fields.  David Kleinschmidt, a midwestern agronomist, and owner of Progressive Agronomy Consulting Services, consults with growers across the Midwest where his in-depth knowledge of soils and soil health helps farmers realize better yields. Brad Hobrock is the owner of AgriBio Systems in Illinois where he farms several thousand acres of corn and soybeans. His voice and experience show the issues of cover cropping and weather challenges from a f

In this episode of the Regenerative Agriculture Podcast, John interviews Dr. Jerry Hatfield, Ph.D., a plant physiologist who runs the USDA’s Agricultural Research Service (ARS) National Laboratory for Agriculture and the Environment in Ames, Iowa. Jerry has done extensive research on the interactions between soils, plants, and the environment. Jerry describes his findings from some of these tests which track interactions among different types of cover crops with different soil and plant variables. Jerry also studies agriculture as a molecular geneticist, testing which genes are activated in plants during drought versus flood conditions and other environmental factors. John and Jerry also discuss the differences between the terms sustainable agriculture and regenerative agriculture, and answer the questions: What are the steps to regenerative agriculture? What is the return on this type of system? To quote Jerry, “If you go down this road of improving your soil, you increase your profitability, you increase yo

In this episode, John interviews David Montgomery, Professor of Geomorphology at the University of Washington. John and David discuss soil regeneration at length, pulling from David’s experience developing new topsoil in dead, stony ground and his deep dive into the science behind it. David came to the field of regenerative agriculture from a unique position. As a geologist studying erosion, he became curious about agricultural impacts on soils.   When David set out to write his first book, Dirt: The Erosion of Civilizations, he imagined it would tie the subject of landscape formation over millennia to how soil erosion affected ancient civilizations. He ended up writing about the history of farming, because that's where soil erosion and degradation connects back to human societies. Spending more than a decade looking at how agriculture has influenced soil loss resulted in an epiphany that led him to see regenerative agriculture as the solution to historically degenerative agricultural problems. In this though

Mike Omeg is a 3rd generation cherry grower who has spent the last few decades farming 350 acres of cherries in The Dalles, Oregon. Mike is an innovator with the vision for new approaches and the analytical mind to measure results. He’s tested myriad techniques in his quest for the best and most profitable methods of growing cherries, and was awarded the Good Fruit Grower award by the Fruit Grower News in 2017. In this conversation, John and Mike delve into the type of bio-intensive system Mike has developed and the data he has collected in his trials. Mike has shown that profitable large-scale agriculture and regenerative practices are entirely compatible and speaks to how his operation has scaled regenerative practices. He also thinks deeply about return on investment, the economic growth of his operation, and discusses the positive impact that regenerative methods have had. Believing that one of the fastest ways to improve soils is to grow a healthy crop, Mike explains his view of the tree as the conduit f

Pascal Fafard is a consultant and crop advisor in Quebec, Canada, working primarily with fruit and vegetable growers. He holds a bachelor’s degree in agronomy and has been supporting and mentoring fruit and vegetable growers for more than 25 years. While working in IPM, nutrition and vitality advising, and the typical agronomic considerations, he realized that taking care of growers is as important as the grower taking care of plants. This shift in focus led to his unique take on agriculture that has inspired advisors and growers to adopt more intuitive farming practices in the hopes of fostering greater peace of mind, increased clarity and enjoyment, better plant vitality and improved business productivity. As you will hear, Pascal is committed to life in all its many forms and brings a perspective that stresses the importance of a close partnership between man and nature. His innovative approach encourages advisors and growers to unlock their full potential and to strive to realize what is most important to