In this encore episode, we revisit a crucial conversation from 2020 on the importance of nitrogen and sulfur in crop nutrition and how they work together to enhance plant health. The discussion emphasizes the need to go beyond just focusing on nitrogen application rates and to implement the four Rs of nutrient management: right rate, right source, right time, and right place. Our experts, Yara's Dr. Trey Cutts and Markus Braaten, CCA, highlight the benefits of using a homogenous product that ensures the correct ratio of nitrogen and sulfur in every prill. Research shows that this balanced approach can lead to a 10-15% increase in both yield and nitrogen use efficiency, ultimately driving profitability. Tune in to learn how balanced nutrition can optimize your crop growth

Takeaways

• Consider more than just the rate of nitrogen application in crop nutrition.
• Focus on the four Rs: right rate, right source, right time, and right place.
• Using a homogenous product like Yara Ametis ensures the correct ratio of nitrogen and sulfur.
• Research shows that using Yara Ametis can lead to a 10-15% increase in yield and nitrogen use efficiency.
• Balanced nutrition is crucial for optimal crop growth and profitability.

Welcome to this special throwback episode of the Yara Crop Nutrition Podcast! We’re revisiting a classic episode from 2019, which is part of a series dedicated to exploring each essential plant nutrient. In this episode, Dr. Steve Petrie, retired Director of Agronomic Services, dives into the vital role of phosphorus in crop nutrition. He breaks down the “Four Rs” of phosphorus application: the right rate, the right source, the right placement, and the right timing. Dr. Steve also emphasizes the importance of soil testing, discusses the benefits of banded versus broadcast applications, and highlights the value of foliar treatments for addressing late-season phosphorus deficiencies. Whether you’re new to nutrient management or looking to refresh your knowledge, this episode offers timeless insights that are just as relevant today.

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In this episode, we're thrilled to welcome Tobin Stetson, a seasoned professional with a rich civil engineering and soil conservation background, who recently joined Yara to support our efforts in the Eastern Canadian markets.  We discuss the relationship between civil engineering and soil conservation, the importance of water in agriculture, and the projects Tobin has worked on in Prince Edward Island. We also explore sustainable farming practices, the impact of irrigation on crop production, and the role of Yara in supporting farmers in Eastern Canada.

Tobin comes to us with a Bachelor’s degree in Civil Engineering. He has spent six years as a Soil & Water Conservation Engineer with the Prince Edward Island (PEI) Department of Agriculture. During his tenure, Tobin has been at the forefront of implementing advanced solutions in soil conservation, irrigation, and wastewater management. He's also deeply involved in enhancing farm infrastructure and promoting sustainable farming practices.

This is the 5th and final episode in a series of episodes dedicated to a network of incubator farms that Yara North America. These farms are dedicated to find innovative ways to improve farm productivity balanced with sustainable practices that can be implemented by growers to improve their on-farm profits.

In this episode the focus is on the Arkansas Delta incubator farm and its efforts to enhance nutrient and water use efficiency, reduce greenhouse gas emissions, and increase yields. The standout feature of this farm is the tailwater recovery system, which recycles excess irrigation and rainwater and meters nitrogen application on a demand basis. The collaboration between Yara and the University of Arkansas has led to significant improvements in nutrient use efficiency, water use efficiency, and carbon footprint reduction. The farm has also seen a reduction in labor output and disruption of soil health. The tailwater pump technology is available to farmers, and they can receive incentive payments to implement it on their farms.

Guest experts on this episode are:

• Curt Knight, Soil Health Agronomist at Yara,
• Neil Mayberry, Yara Regional Market Development Manager of the Easter US
• Dr. Christopher Henry, Associate Professor and Water Management Engineer at the University of Arkansas.  He is a specialist in irrigation system design, scheduling, and efficiency.
• Dr. Tim Burcham, Director of the Northeast Rice Research and Extension Center, or NERREC, for the University of Arkansas System Division of Agriculture.

We are in the forth episode in a series of episodes dedicated to a network of incubator farms that Yara North America is using to find innovative ways to improve farm productivity balanced with sustainable practices that can be implemented by growers to improve their on-farm profits. 

In this episode, Scott Warr and Erika Wagner discuss the Yara incubator farm in the Snake River Valley, Idaho, and its focus on potato production. They explore the differences between potato production for fries and the fresh market, as well as the objectives of the incubator farm in terms of crop nutrition, yield, quality, and carbon footprint. They also discuss the levers that can be pulled to reduce emissions in potato production and the importance of nutrient management in potato sizing and quality. Erika shares her excitement about the new season in the Snake River Valley and highlights the conferences and events where potato growers can learn more about the industry.

Erika Wagner, Agronomy Solutions Manager.  Erika has a BS in molecular biology and a masters in agronomy.

Fun facts about potato production in Idaho:
• Idaho grows the most acres of potatoes of any US state with 328,850 planted in 2023.
• The majority of the potatoes grown are russet potatoes.
• Russet potatoes grown in Idaho are used for processing into fries and for the fresh market.
• The majority of potato acres in Idaho are located in the Snake River Valley.

We are in the third episode in a series of episodes dedicated to a network of incubator farms that Yara North America is using to find innovative ways to improve farm productivity balanced with sustainable practices that can be implemented by growers to improve their on-farm profits.  Today, we're talking about the incubator farm in the  Canadian prairies to Saskatoon, Saskatchewan.

Spread across 40 acres, we are studying essential crops like wheat, canola, peas, and barley.

Managing the farm is Yara's Delaine Mandziak, Agronomist now focusing on biologicals.

In this part 2 of our Incubator Farm series, Devin Clarke, takes us to the Yara Almond Incubator Farm in Modesto, California, a pioneering site in the heart of California's Central Valley. The farm is part of a series dedicated to exploring innovative solutions that combine enhanced farm productivity with sustainable practices. This 80-acre farm, which also features a walnut grove, functions as a collaborative research hub.

Devin Clarke, Agronomy Solutions Manager at Yara North America and a member of the Strategic Ag Innovation Committee for the Almond Board of California, delves into the cutting-edge practices being tested on this farm. The focus of the discussion is on continuous fertigation, a method that optimizes nutrient delivery to almond trees based on weekly crop demand curves. This strategy not only improves nutrient use efficiency but also boosts yield and reduces disease incidence, such as whole rot.

Devin emphasizes the farm's role in pushing the boundaries of traditional almond farming by integrating innovative crop nutrition management strategies that enhance productivity and soil health. The episode also touches on the challenges of scaling these practices, including the need for better infrastructure and practical guidance to support the widespread adoption of continuous fertigation among growers.

Listeners will gain valuable insights into how collaborative efforts at the Yara Almond Incubator Farm are reshaping the future of nut farming, aligning technological advances with sustainable agricultural practices.

This is the first in a series of episodes focused on the five incubator farms that Yara is managing in North America.  Launched in 2019, the Yara Incubator Farms Network is not just a series of farms; it's a visionary project connecting the dots between farming practices and the global food chain. With over 600 acres across North America, these farms serve as a living laboratory where cutting-edge research in soil fertility and crop nutrient management is conducted. This isn't just about increasing yields; it's about revolutionizing how we approach food production in harmony with the environment.

At the core of this initiative is the commitment to a triple bottom line: achieving climate neutrality, fostering sustainable farming practices, and enhancing Prosperity—all while supporting the UN Sustainable Development Goals. Each farm within this network exemplifies Yara's dedication to these principles.

In this episode, we zoom in on a key player within this network—the Soil Health Incubator Farm in Auburn, Alabama. Situated within the EV Smith Research Station in collaboration with Auburn University, this 80-acre site serves as a prime example of how innovative farming practices can profoundly impact soil health and crop productivity.

Curt Knight, a Soil Health Agronomist at Yara, brings a wealth of knowledge with his Masters in Agronomy and soil science. Curt will shed light on the dynamic approaches being employed at the Auburn Incubator Farm to not only enhance soil health but also ensure profitable returns for farmers.

How important is the thin layer of crust on earth that we call soil? Dr. Rob Mikkelsen, Yara North America's Director of Agronomy, and soil science expert Professor John Havlin help us understand. Dr. Havlin's work has not only revolutionized grape cultivation in North Carolina but also advanced sustainable farming practices worldwide.

In this episode, we discuss the evolution of soil fertility practices, the impact of nutrient management on crop quality, and the significance of long-term agricultural trials. We'll also delve into Professor Havlin's intriguing research on wine grapes and how soil health drives the growing wine industry in North Carolina.

Nutrient management can become an opportunity for environmental stewardship.

Some Takeaways:

• Soil science is crucial for sustainable agriculture and the future of food production.
• Nutrient management and long-term trials play a significant role in improving farming practices.
• The book 'Soil Fertility and Fertilizer' has evolved over the years to address changing agricultural practices and environmental concerns.
• There is a need for more young people to pursue careers in soil science and agriculture.
• Teaching quantitative skills in soil science is a challenge but essential for understanding the science behind soil health and fertility. The work with wine grapes in North Carolina has been the most exciting and rewarding for John Havlin.
• Nutrient management, particularly nitrogen application, plays a crucial role in improving the quality of wine grapes.
• Soil health and fertility are essential for successful grape growing.
• The grape industry in North Carolina has grown significantly in the past few decades.

Dr. Havlin holds the position of professor and extension specialist in Crop & Soil Sciences at North Carolina State University. He has also served as the past president of the Soil Science Society of America. Dedicated to raising awareness about soil's crucial role, Dr. Havlin's efforts have contributed to the establishment of the House of Representatives Soils Caucus and a $4 million educational exhibit at the Smithsonian, which opened in 2008. This exhibit aims to educate the museum’s six million annual visitors on how soil is fundamentally connected to human health, environmental sustainability, and planetary well-being.

To learn more check out these links:

• Document for the Carolina Geological Society (2022)
• Journal article summarizing some of our vineyard nutrient management research (2022), which will serve as the basis for an Extension product coming out later this year. 

In this episode of the Yara Crop Nutrition Podcast is a little different.  We talk with Taylor Chalstrom, the dynamic managing editor of My Ag Life and host of the My Ag Life podcast.  My Ag Life is a cornerstone resource dedicated to enriching the agricultural community in the Western United States with cutting-edge information. We talk about crucial topics such as soil health, the emerging role of biostimulants, advancements in agricultural technology, the intricacies of integrated pest management, and the criticality of effective water management. 

Links and Resources:

• My Ag Life Podcast
• Yara Crop Nutrition Podcast Subscribe Link

Connect with Us:

We love hearing from our listeners! Share your feedback, questions, or suggestions with us on our social media channels or HERE

 Dr. Camberado's achievements include significant awards from the American Society of Agronomy and impactful roles at both Purdue and Clemson University.

Dr. Camberato's work focuses on developing and disseminating nutrient use recommendations to enhance agricultural productivity. As a member of leading societies like the Soil Science Society of America, his expertise is invaluable to the farming community. Join us as we delve into the intricacies of nitrogen management with an expert in the field.

Useful Links:

• Perdue University's Soil Fertility site
• Some of Dr. Camberado's publications

• Grapevines require a balanced approach to nutrition and stress management to achieve high-quality yields.
• Mechanization and precision fertigation have revolutionized grape growing practices, allowing for more efficient use of resources.
• Different grape varieties are cultivated for wine, table grapes, and raisins, each with specific production goals and management practices.
• The grape industry faces challenges such as labor shortages, water availability, and disease management, but innovation and efficiency can help overcome these obstacles.
• Stan Grant's expertise and contributions to the grape industry have been instrumental in raising the level of knowledge and improving practices.

Useful Links that we mentioned

• Lodi Growers
• Idaho Wine Commission

This episode explores the history, development, and sustainability of the potash industry. We are joined by Dr. Davide Ciceri, who currently leads innovative R&D at AgroPlantae, Inc. and Yara’s Director of Agronomy, Dr. Rob Mikkelsen.

We begin with the origins of potash, which can be traced back to ancient methods of extracting potassium compounds from wood ashes. The conversation then delves into the development of the potash fertilizer industry, highlighting the work of chemist von Liebig and the commercial mining of potash in Germany. The different methods of potash mining, including underground mining and solution mining, are discussed. The conversation also explores the sustainability of potash resources and the potential for alternative sources of potassium. The importance of considering the right source of potassium for specific crops and soil conditions is emphasized. The conversation concludes with a discussion on the historical significance of potash and the ongoing research and development in the industry.

Dr. Ciceri wrote an insightful article, “Historical and Technical Developments of Potassium Resources.”

Here are the links to our other episodes on the history of fertilizers:
- The Alchemy of Air with Author Thomas Hager
- The History and Future of Phosphorus for Plants
- An Unsung Hero: Norman Borlaug

Here is a beautiful photo of the potash evaporation ponds near Moab, Utah

In this episode, the hosts discuss the benefits and challenges of using liquid fertilizers. Dr. Karl Wyant, Director of Agronomy at Nutrien, and Dr. Rob Mikkelsen, Director of Agronomy at Yara, explain how liquid fertilizers offer more flexibility in creating customized nutrient formulations tailored to specific crop needs. They emphasize the importance of understanding compatibility and safety when blending and handling liquid fertilizers. We discuss the concept of suspension and solution fertilizers and discuss the differences between them. Highlighed is the significance of pre-planning, jar testing, and using resources like compatibility tables and Yara's Tankmix to avoid mixing issues. They provide insights on storing and maintaining liquid fertilizers and discuss future innovations in the field.

Takeaways

• Liquid fertilizers offer flexibility in creating customized nutrient formulations for specific crops.
• Understanding compatibility and safety is crucial when blending and handling liquid fertilizers.
• Jar testing is an important tool to predict compatibility and avoid mixing issues.
• Proper storage and maintenance of liquid fertilizers are essential to ensure their effectiveness.

Links:

• Karl's recent article in Fertilizer International Magazine, "Liquid Fertilizers - Compatibility and Safety"
• Karl mentioned the Fluid Fertilizer Foundation as a resource
• Yara's Tankmix to avoid mixing issues

Chapters

00:00 Introduction to liquid fertilizers
04:30 Challenges of liquid fertilizer mixing
06:44 Difference between suspension and solution fertilizers
10:23 Importance of knowing suspension and solution fertilizers
12:13 The importance of jar testing
18:36 Storage and maintenance of liquid fertilizers
21:37 Storing liquid fertilizers over the winter
23:40 Maintenance and cleaning of fertilizer tanks
26:38 Future innovations in liquid fertilizers
31:41 Conclusion and holiday wishes

In the dynamic world of crop production, staying ahead means understanding not just the 'how' but the 'why' behind effective agronomics. And that's exactly what we're unpacking in this episode. Foliar nutrition is more than just a trend; it’s a pivotal part of modern agriculture, offering targeted, efficient, and quick nutrient delivery to your crops.

We'll explore the science behind foliar feeding,

• how it complements traditional soil nutrition,
• its role in maximizing crop health and yield. 
• how folier applied nutrition can help plants in drought conditions

To help us understand this we have two experts: Dr. Rob Mikkelsen, Yara North America's Director of Agronomy and Delaine Madziak, Regional Market Development Manager for Western Canada.  They are going to relate real-world case studies, and practical tips that you, as a grower or agronomist, can apply in your fields.

How can furthering the practices of the 4R nutrient management, transform not only agricultural productivity but also contribute significantly to environmental sustainability and climate change mitigation? 

Dr. Tom Bruulsema, Chief Scientist at Plant Nutrition Canada, and Yara’s Director Of Agronomy, Dr. Rob Mikkelsen are back with us to talk about the advancement of the 4Rs of Nutrient Stewardship.  

In addition to Dr. Bruulsema's many jobs, he is also a committee member at the Scientific Panel on Responsible Plant Nutrition or SPRPN.

In a previous episode with Tom, we talked about the ambitious mandate by the Canadian government to cut fertilizer-related greenhouse emissions by 30% by the year 2030. We talked about the critical role of the  R's of nutrient stewardship (rate, source, timing, and placement) in curbing emissions and enhancing nitrogen use efficiency. 

In this episode, we will explore why there's a pressing need to further the 4Rs. We'll discuss how the 4R concept has been integrated into agricultural conversations worldwide and examine its impact over the past decade in North America and globally. 

We'll also address the idea proposed by Paul Fixen in an earlier podcast about adding more "R's" to the existing framework. 

This episode is a part 2 from last week, where Dr. Rob Mikkelsen met up with some notable soil scientists at the American Society of Agronomy conference.

In this episode of our podcast, we delve into the life and career of Dr. John Ryan, a distinguished international soil scientist with an extraordinary background. Born and raised in Ireland, Dr. Ryan's journey in the realm of semi-arid agriculture is as fascinating as it is impactful. 

Dr. Ryan, holding degrees from University College Dublin and the University of Arizona, and a Certified Professional Soil Scientist, takes us through his remarkable journey from the green landscapes of Ireland to the arid environments of Arizona, Lebanon, Morocco, and Syria. He shares the unique challenges and rewards of working in these diverse climates, emphasizing his work with smallholder farms in resource-limited settings. 

Throughout the episode, Dr. Ryan discusses how improving agricultural productivity can transform the lives of families and communities, especially in semi-arid zones. He sheds light on the significant barriers to enhancing farm productivity in these regions, including climate change, erratic rainfall, and political instability.

Dr. Ryan also reflects on his professional contributions, expressing pride in the international service awards he's received from notable societies like ASA, CSSA, and SSSA, and being named a Fellow in all three. His insights on the future of farming under challenging conditions are both enlightening and thought-provoking.

This episode is a must-listen for anyone interested in agriculture, environmental science, and the real-world impact of scientific research. Join us as we explore the journey of a man who went from an Irish kid to a global influencer in the field of soil science and agriculture.

Dr. Rob Mikkelsen recently attended the American Society of Agronomy Conference.
He reunited with many of his colleagues and we have the chance to bring two international influencers onto our podcast over the next couple weeks.

In this week's podcast, we delve into the heart of modern agriculture with Dr. Fernando Garcia, a renowned expert in soil fertility and crop nutrition. Dr. Garcia is a Free Professor at the College of Agricultural Sciences of the National University of Mar del Plata, Argentina, and a consultant for various agricultural organizations, shares his valuable insights into ecologically intensified cropping systems and their impact on global agriculture.  Some of the topics we covered are 

• The Four Pillars of Agriculture: no-till farming, crop rotation, cover crops, and balanced nutrition.
• Dr. Garcia’s perspective on how these pillars contribute to sustainable agriculture.
• Comparative Agriculture: Argentina vs. North America.  
• Dr. Garcia outlines key challenges in modern agriculture and discusses innovative approaches and technologies in addressing these challenges with an emphasis on the importance of adapting to climate change and environmental pressures.
• Exploration of programs and strategies used by Argentinian farmers and how these practices can be examples for farmers globally.
• The role of government and private sector in supporting these initiatives.

Make sure you check out next week's episode with Dr. John Ryan

In this episode of the Yara Crop Nutrition podcast, we delve into the world of crop management and dairy operations with guests Emmaline Long from Yara North America and Dave DeGolyer from the Western New York Crop Management Association. Over 35 minutes, they discuss the critical role of 4R Nutrient Stewardship in dairy farms, including the development and importance of  Comprehensive Nutrient Management Plans (CNMP) for dairies, and the unique factors such as manure management that affect these operations. Dave also sheds light on his organization's journey to 4R Nutrient Stewardship Certification, detailing the process, importance, and impact on their business. 

In this episode of the Yara's Crop Nutrition Podcast, Scott and Dr. Rob Michelson discuss the Canadian government's mandate to reduce fertilizer-related greenhouse emissions by 30% by 2030. They are joined by Dr. Tom Bruulsema, the chief scientist at Plant Nutrition Canada, to delve into the evidence supporting the four R's of nutrient stewardship and their role in reducing emissions and improving nitrogen use efficiency. The conversation covers the importance of finding a balance between reducing emissions and maintaining high crop yields, the use of nitrification inhibitors to reduce nitrous oxide emissions, and the need to consider all four R's (rate, source, timing, and placement) in fertilizer management. Dr. Bruulsema highlights the economic benefits for farmers and the collaborative efforts between the government and industry to support the adoption of sustainable practices. The episode concludes with a call for continued collaboration and innovation to achieve lasting gains in nutrient stewardship. Tune in to gain insights into Canada's efforts to achieve emission reduction targets while maximizing productivity and sustainability in agriculture.

In today's episode, we dive into the fascinating world of soil science and agronomy with Dr. Newell Kitchen, who has recently published an eye-opening research paper titled "A New Perspective When Examining Maize Fertilizer Nitrogen Use Efficiency, Incrementally." We'll explore the key insights from his groundbreaking work and how they can transform the future of farming.

• Introduction to Dr. Newell Kitchen and his illustrious career in soil science and agronomy.
• History of the USDA-Agricultural Research Service
• Where we've come in nitrogen management over the past 30 years

Recommended Resources

• Article,  "A New Perspective When Examining Maize Fertilizer Nitrogen Use Efficiency, Incrementally"
• USDA Agriculture Research Service Website
• Newell's consulting business is Agronomic, Geologic & Environmental Services

• Roots are often overlooked but play a crucial role in plant health.
• Nitrogen promotes the development of a dense and extensive root system.
• Phosphorus influences root architecture and stimulates associations with mycorrhizal fungi.
• Potassium affects overall plant growth and water relations.
• Calcium is involved in many aspects of root health and triggers hormone production for root growth.
• Micronutrients are important for root growth and health.
• A balanced supply of nutrients is essential for root health and overall plant health.

In this episode, we're excited to welcome Dr. Grant Cardon, a professor and Extension Soils Specialist at Utah State University's Department of Plants, Soils & Climate. With years of expertise in soil, water, and nutrient management in the Western U.S., Dr. Cardon is a leading authority in his field. Today, Yara's Dr. Rob Mikkelsen joins in the conversation where we tackle a question many have about soil testing: "Why do different soil labs yield varying results from the same samples?" Dr. Cardon will guide us through the importance of accurate soil testing, the variables that cause these discrepancies, and how to ensure you're getting the most reliable data for your soil analyses. Whether you're an agronomist, a grower, or simply interested in the science behind the soil, this episode offers invaluable insights.

Soil Science Society of America's North American Proficiency Testing.

Check out Dr. Cardon's blog, Dirt Diggers Digest article on this subject.

We recently did a podcast episode on the creation of the 4Rs of Nutrient stewardship with Dr. Paul Fixen.  This was a simple to understand management strategy to improve nutrient use efficiency and on-farm profits.   Today we are going to expand on this strategy and talk about how the evolution of farming has changed and how we can become more precise in our execution of the 4Rs and see improved results.

Today we are diving into a fascinating topic that is both crucial to modern agriculture and a wonder of the natural world – bees. These tiny yet mighty creatures have been an integral part of farming for centuries, shaping the landscapes of our fields and the flavors on our plates.

In this episode, we're joined by a seasoned bee expert, Jeff Shaw, Bee Hero, and Jesus Toro, Agronomy Specialist, and apiarist,  who will guide us through the historical significance of bees in agriculture, their invaluable role in pollination, and how they can be allies in boosting your on-farm profits through complete nutrition programs. We'll explore the intricate relationship between bees and the crops they help flourish, uncovering the challenges they face and the solutions that pave the way for a harmonious coexistence.

Links that you might find helpful:

• Bee Informed: dedicated to working with beekeepers to improve colony health and increase colony survivorship.
• Bee Where: Bringing beekeepers and pesticide applicators together by tracking and safeguarding hive locations across California using simple mapping tools
• Xerces Society: international nonprofit organization that protects the natural world through the conservation of invertebrates and their habitats
• American Beekeeper Federation: Acts on behalf of the beekeeping industry on issues affecting the interests and the economic viability of the various sectors of the industry
• Project Apis m.: Funds research and efforts to improve honey bee health and vitality.

In this episode of the Yara Crop Nutrition Podcast, we will explore apple fertility, focusing on the key nutrients that are essential for optimal growth and fruit development. We also uncover the factors that impact fertility recommendations, including soil pH, organic matter content, weather conditions, and crop rotation practices.  Emmaline Long, Agronomy Solutions Manager here in North America.

It’s been 11 years since the 4R Plant Nutrition manual was published, setting out a framework for the stewardship of plant nutrients agreed to by soil fertility scientists and crop nutrition practitioners.  This episode delves into the fascinating history behind the 4Rs of Nutrient Stewardship, a groundbreaking framework created by The Fertilizer Institute with the invaluable expertise of Paul Fixen and our own Directory of Agronomic Services, Rob Mikkelsen.  

Paul Fixen is retired from serving as Senior Vice President of the International Plant Nutrition Institute where his responsibilities included coordination of the Institute's global research efforts.  Dr. Fixen also served as the 2016 President of the American Society of Agronomy (ASA), the largest agronomic professional and scientific society in the world.

Get the manual, "4R Plant Nutrition: A Manual for Improving the Management of Plant Nutrition"

"Furthering 4R Nutrient Stewardship" article we discussed.

"A Brief Accont of the Genesis of 4R Nutrient Stewardship"

In the realm of professional sports, the meticulous care of sports turf fields sets the stage for exceptional athlete performance. Unlike traditional farmlands, urban landscapes, or native ecosystems, these specialized fields demand precise agronomic strategies to withstand the rigors of athletic activity. Tailoring crop nutrition to specific turf grass varieties, managing constant foot traffic, and ensuring rapid recovery all contribute to lush, resilient playing surfaces that meet exacting sports industry standards while upholding the health of these green spaces. Joined by Yara's Neil Mayberry, Regional Market Development Manager for the Eastern US, Dr. Rob Mikkelsen, Director of Agronomic Services and Dr. Bryan Hopkins from Brigham Young University, this podcast episode delves into their insights drawn from a comprehensive study of North American sports turf fields, unraveling effective management practices that bridge the gap between playability and sustainability.

Be sure to check out the bible, "Best Management Practices for the Sports Field Manager"

Another resouce is a talk that Dr. Bryan Hopkins did last year, "Soil Science Simplified: The Dirt on Green Grass"

Today Dr. Rob Mikkelsen talks about the pivotal role sulfur plays within plants, its intricate relationship with other nutrients, notably nitrogen, and the remarkable impact it has on overall plant health. We will delve into the factors contributing to the increasing prevalence of sulfur deficiencies in North America and discuss the far-reaching consequences for both plants and the environment.  As we navigate the ramifications of sulfur deficiency, we will equip you with practical insights on identifying and addressing sulfur deficiencies in your crops. From the various sources of sulfur available to meet crop needs to actionable steps for optimizing sulfur management, we have all the answers you need. 

Welcome to a special episode of the Yara Crop Nutrition Podcast! Soil health seems to be ubiquitous in our agronomic discussions today. Soil health has three main properties: physical, chemical and biological.

Today, we have the privilege of hosting Dr. Jacob Parnell, an esteemed expert in soil health and fertility. In this episode, Dr. Parnell will delve into how new soil testing methods help us understand more about our soil health and how it might impact our fertilizer use efficiency. Join us as we explore the significance of soil health, unravel the mysteries behind soil testing methods, and uncover how these tests can revolutionize the way we optimize fertilizer applications.

Have you ever wondered if the buzz around soil biology and its impact on soil health is grounded in scientific evidence or just exaggerated hype? Well, you're not alone. Today, we're joined by an esteemed expert, Andrew McGuire from Washington State University.  He is here to debunk some myths and shed light on the truth behind soil biology and its practical implications for farming practices.

Andy will share his insights on how farmers can navigate through the maze of information and make informed decisions for sustainable soil health management.

• Andrew McGuire is an agronomist working in the Columbia Basin’s irrigated cropping systems. His current focus is on helping farmers build soils, save money, and maintain yields through high residue farming systems and cover cropping. Andy has been with the CSANR since 1999. Before coming to Washington, Andy worked for the University of Nebraska Cooperative Extension, the Natural Resources Conservation Service in Western Colorado, and from 1988-1990, he served in the Peace Corps as a rural water engineer in Ecuador.  Andy has a B.S. degree in Agricultural Engineering from Colorado State University and a M.S. degree in Agronomy from the University of California-Davis.

Read more from Andrew on his BLOG

We mentioned the book, "Buidling Soils for Better Crops"

Stay tuned to next week's continued discussion about Soil ecology with Dr. Jacob Parnell.

In today's episode, we are excited to explore the topic of regenerative farming.  We are delighted to have a special guest, Benina Montes with Burroughs Family Farms, a family-owned and operated business in California that has been at the forefront of regenerative agriculture for over four decades.

We will delve into the various strategies and practices that Burroughs Family Farms has implemented to enhance their soil health and overall sustainability. We will discuss the importance of cover crops, crop rotations, and nutrient management in promoting healthy soil microbiomes, increasing soil organic matter, and reducing greenhouse gas emissions.

In this video episode of the Yara Crop Nutrition Podcast, Dr. Rob Mikkelsen, Director of Agronomy for Yara in North America, delves into the crucial topic of nitrogen nutrition in crops. He discusses the physiological preference of most common crops for nitrate nutrition over ammonium, explaining how the ionic charge of the nitrogen molecule impacts plant growth and soil conditions. Rob highlights various research findings, including those from Dr. Dharma Pichay at Tennessee State University, demonstrating the negative effects of ammonium on a range of crops such as almonds, apricots, tobacco, strawberries, and tomatoes. He emphasizes the goal of Yara to provide optimal crop nutrition through their nitrate-based fertilizers, ensuring plants reach their full potential. Tune in to learn more about the significance of nitrate nutrition and how it can enhance crop performance.

In this episode, we explore the use of aerial imagery in modern agriculture. The episode covers different types of aerial imagery available to farmers, such as drones, airplane, and satellite imagery, and discusses the advantages of using this technology for crop monitoring. Imagery expert, Jesus Salcedo with the Morningstar company talks about the challenges and limitations of using aerial imagery in agriculture, as well as the potential for new technologies such as hyperspectral imaging and machine learning to transform the way farmers use and interpret this data. Overall, the episode highlights the potential benefits and considerations of using aerial imagery in precision agriculture.

Find out more about Morningstar Company HERE

Learn more about Gradient Crop Yield Solutions HERE

In today's episode, we'll be exploring the fascinating relationship between proper plant nutrition and disease and pest management. We all know that a healthy plant is better equipped to fend off pests and diseases, but did you know that the right balance of nutrients can also play a crucial role in preventing outbreaks and managing infestations? Dr. Rob Mikkelsen, Yara's Dir. of Agronomic Services is joining us today to teach us more about the science behind this important relationship, as well as practical tips for implementing effective plant nutrition strategies on your farm. 

It has been estimated that fertilizers contribute to about half of global food production.  However, these same fertilizers can be responsible for green house gas emmisions.  How can we strike a balance between the benefits of fertilizer use in food production and the greenhouse gas emissions attributed to fertilizers?

In this episode, Dr. Rob Mikkelsen helps us explore the impact of fertilizers on the environment, specifically their contribution to Scope 3 greenhouse gas emissions. We will discuss the importance of reducing these emissions through sustainable agriculture practices to mitigate climate change and ensure a healthy planet for future generations. Join us as we delve into the challenges and opportunities of balancing crop nutrition with environmental sustainability.

In this episode, we discuss the benefits of cover crops in terms of sustainability, profitability, and soil health. We explore the ROI of cover crops and how they can improve nutrient use efficiency in farming. Yara's Director of Agronomic Services, Dr. Rob Mikkelsen is joined by  Curt Knight, Soil Health Agronomist to provide insight on the latest research and practical tips for farmers looking to incorporate cover crops into their operations.

• Explanation of what cover crops are and how they are used in agriculture
• Types of cover crops and the benefits of each
• Some history of cover crops
• Overview of the benefits of cover crops for sustainability, profitability, and soil health
• Discussion of the financial benefits of cover crops, including reduced input costs and increased crop yields
• Explanation of how cover crops can improve nutrient use efficiency by cycling nutrients and reducing leaching

Useful links for further learning

Sustainable Agriculture Research and Education is a great place to start. Lots
of good information on the specifics of cover crop selection and cover cropping strategies.

There are many cost sharing and incentive programs for cover crops:

• USDA Cover Crop Subsidy
• NRCS EQIP (environmental quality incentives program)
• Carbon credit programs: where the company will pay you based on the amount of carbon that your cropping systems have sequestered. Cover crops are usually included in these programs. Our friends at Agoro Carbon Alliance.
• Many statewide and regional cost-sharing programs

For our friends in Canada:

• Ag Action Manitoba
• Ducks Unlimited Canada
• Canadian Agricultural Partnership
• On-Farm Climate Action Fund (Canadian Federal Initiative)

In our last podcast, we looked back in history with a couple Ag Leaders, Dr. Bill Easterwood and Dr. Steve Petrie. In this episode, we speak with Brian Kenyon, VP of Innovation and Sustainable Solutions. How can we move from short-term to long-term profit through innovation and a circular economy? Brian give us his top innovations that can lead us to a nature possitive food future.

Brian Kenyon retired at the end of 2022 after 14 years with Yara where he has held many roles from product and market development to commercial, to his last role as VP of Innovation and Sustainable Solutions. His perspective and experience give him a wholistic view of agriculture into the future. 

Brian mentioned Paul Pulman’s book Net Positive: How Courageous Companies Thrive by Giving More than They Take. 

Check out this article on Yara's leadership in Green Ammonia.

One of Yara's goals is to grow the knowledge of our community.  Today we are fortunate to talk with Dr. Bill Easterwood and Dr. Steve Petrie.  Both have been working in agriculture for over 70 year combined.  They have learned a lot and seen a lot of changes over their carrers.  We sit down with them to give us perspective on our industry and what amazing opportunities we have in the future.

Dr. Bill Easterwood is retiring this year after 31 years with Yara.  Dr. Steve Petrie retired from Yara last year.  We are fotunate to have all worked and learned from them.

This is the fourth episode in a series that will help us understand soil analysis and how it can be beneficial as you create a complete nutrition plan.

In this episode, we discuss what we do with the soil analysis report we get back from the lab.  How do we interpret these results and create a nutrition plan that will create the optimal ROI for your field and crop.   It might be beneficial to listen to the previous episodes:

1. Is There Value in Soil Analysis
2. What You Need To Know When You Are Taking Soil Samples
3. Soil Analysis - Lab Considerations and Analytical Processes

If you have any questions or want to learn more, please visit Yara US or Yara Canada

If you have any comments or suggestions, please feel free to leave a comment

This is the third episode in a series that will help us understand soil analysis and how it can be beneficial as you create a complete nutrition plan. In this episode, we talk about how to select a lab, what types of tests a lab can run, and what you should know about the process that might help with the interpretation. It might be beneficial to listen to the previous episodes:

1. Is There Value in Soil Analysis
2. What You Need To Know When You Are Taking Soil Samples

Check out this 2:00-minute VIDEO that shows what happens when your soil samples arrive at the lab.

Here are a couple of organizations that make sure labs are proficient in their protocols and a list of labs that have been certified:

• NAPT North American Proficiency Testing Program
• ALP Agricultural Laboratory Proficiency Program

If you have any questions or want to learn more, please visit Yara US or Yara Canada

If you have any comments or suggestions, please feel free to leave a comment

This is part 2 of our soil analysis series.

In this episode, we discuss when, where and how to take soil samples that you will send to the lab. We discuss the differences between grid sampling vs. zone sampling and composite sampling.

Listen to our first episode when we discussed why or if you should do soil analysis HERE 

Dr. Rob Mikkelsen, Yara North America's Director of Agronomic Services, helps us understand the origin of using phosphorus for plants and how this has changed over the years.  We discuss what the future of phosphorus might look like too.

Read Dr. Rob's article we reference HERE

Check out a couple of our favorite episodes:

• An Unsung Hero: Norman Borlaug
• The Alchemy of Air with author Thomas Hager

In this episode, Dr. Rob Mikkelsen  teaches us about the fascinating and often overlooked world of root health and its crucial role in plant nutrition. He begins by posing a thought-provoking question: Do nutrients influence roots, or do roots influence nutrients? The answer, as Rob explains, is a complex interplay of both.

• The Hidden Half of Agriculture: Rob emphasizes the importance of roots, which are frequently overlooked despite their critical role in plant health. He encourages agronomists and farmers to always carry a shovel to inspect root health regularly.
• Complex Structure of Roots: The episode highlights the significance of root hairs in water and nutrient uptake. Rob explains how calcium is absorbed only at the root tips, underscoring the need for healthy roots to continually explore new soil zones.
• Historical Perspective on Nutrient Uptake: Rob shares an old illustration that depicts nutrient uptake as a train system, transporting nutrients to the “factories” in the leaves. This analogy helps explain the complexity of nutrient assimilation processes.
• Influences on Root Health: The podcast discusses several factors that affect root health, including:
• Soil Acidity: High soil acidity can stunt root growth due to toxic soluble aluminum, but this can be remedied with proper limestone applications.
• Soil Salinity: Excess salt can cause water stress and reduce plant performance.
• Soil Compaction: Compact soil can hinder root penetration, affecting water and nutrient uptake.
• The Role of the Rhizosphere: Rob introduces the rhizosphere, the narrow zone surrounding roots, rich in biological activity. He highlights its importance in nutrient uptake and overall plant health.

Subscribe to our channel to stay updated on future episodes where we continue exploring the fascinating world of plant nutrition and its impact on crop health.

Connect with Us:

• Website: Yara North America

• Social Media: Twitter, Facebook, LinkedIn

We have stated that soil analysis should be your baseline & starting point for developing a good nutrition plan for your crops.  Is this still the case?  Are there better ways to determine what the plant needs to maximize its genetic potential?  Are soil tests accurate? What about spatial variability? Do they cost too much money? Are tissue/petiole tests better?

In this part 1 of a series of episodes focused on soil analysis, Dr. Rob Mikkelsen and Markus Braaten discuss these questions and if and how soil analysis should be integrated into your workflow.

As we work through these topics, we would love to hear from YOU.  If you have comments or questions, please submit them by clicking HERE or emailing scott.warr@yara.com.

There are many variables in farming.  Distruptions are a challenge that growers are atuned to recognizing and making decisions that can minimize the  impact.  Gary Vogen, Yara North America's VP of Corporate and Regulatory Affairs joins Dr. Rob Mikkelsen and Devin Clarke to discuss some of the new regulatory issues that are specific to fertilizers          and how they might effect agriculture.  

Permanant Crop Manager, Devin Clarke, talks about the importance of post harvest irrigation on almonds relative to carbohydrate production and storage.  It is the only time that we can build carbohydrates in excess of what the tree is demanding and store for the coming bloom resulting in improved yields.

This episode originally aired in the fall of 2018 when we weren't in an extreme drought.  In this episode Yara's Regional Sales Manager, Peter DeBoer, and Spencer Cooper, formerly with the Almond Board of California discuss strategies to properly irrigate almonds post harvest.  

If you would like further information, please visit 

• This article on Yara's web site
• The Almond Board of California's Irrigation Continuum
• Get in touch with the field outreach team at the Almond Board of California

Crop Manager Delaine Mandziak, gives us an update on the activities on one of our four North America Incubator Farms.  Listen to our introduction to this farm on our initial episode about this Farm.

Delaine talks about the devestating drought conditions they have endured throughout Western Canada and they unexpected learnings from this.  She also updates us on the 2022 observational data and the importance of a complete nutrition program during these challenging times.

The Saskatoon incubator farm is 80-acres of row crops that feature Western Canada's cropping system including canola, wheat, barley, peas, lentils, etc. To find out more about the Saskatoon field click HERE

Yara has created these incubator farms in North America with collaborative efforts with customers, partners, and various technology providers, Yara plans to utilize these farms to study and advance insights into all aspects of the cropping system. To find out more about the incubator farms click HERE.