By Pulse Crops Working Group
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The podcast currently has 78 episodes available.
Dr. Clain Jones is Montana State University Extension’s soil fertility specialist. In this role he covers anything that has to do with fertilizer or nutrient cycling in both agriculture as well as home/garden systems. He started at MSU as a tenure track faculty member in 2006, and has ended up doing quite a bit of work with pulse crops over the years. He joins me today to talk about fertility in pulses, the importance of inoculation, nitrogen credits, soil pH, and the overall importance of pulse crops to soil health.
“Adding five pounds of sulfur per acre to lentils, what we found at least here in Bozeman, was that nitrogen fixation increased at a much faster rate than yield did. What that told us was that by applying sulfur, maybe we're not going to see a huge yield response, but we're going to contribute a lot more nitrogen both to that crop and to the next crop.” - Dr. Clain Jones
Dr. Jones stresses the importance of plant nutrition and pH when it comes to optimizing a pulse crop's ability to fix nitrogen. Limestone deposits in the soil can make pH values highly variable even within a field. This can make accurate soil testing a challenge. An acidic pH has a significant impact on rhizobia viability as they don’t tolerate low pH values very well. Along with pH, many micronutrients such as sulfur, potassium and phosphorus also need to be considered when assessing overall soil health and nitrogen fixation efficiency.
“We have low phosphorus because our high levels of calcium tie up that phosphorus making it less available to crops. Knowing that phosphorus is essential for nitrogen fixation, my gut feel is that phosphorus is probably the nutrient most limiting nitrogen fixation and probably pulse crop growth in our two state region.” - Dr. Clain Jones
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
Kim Sauressig is a fourth generation farmer in Central North Dakota where he grows a wide range of crops including corn, wheat, durum, barley, soybeans, lentils, chickpeas and pinto beans. He also raised cattle until a few years ago when they decided to focus exclusively on crops. When not farming, Kim chairs the North Dakota Dry Pea & Lentil Council and has a seat on the USA Dry Pea & Lentil Council where he serves as the chair of the research committee. Kim shares his journey into pulse crops, what roles they play in his overall rotations, the value of associations like the USA Dry Pea & Lentil Council, and why he believes more farmers should consider including pulse crops in their crop rotations.
“So we started seeding pintos and we were putting a little bit of “N” down. My agronomist called me and he got our soil test back from the laboratory and he is like, just drop your fertilizer. He said, “You don't have to put anything down.” And I truthfully, honestly think that that's because the lentils from the two years previous had fixated it in there. We didn't need it anymore.” - Kim Sauressig
Kim highlights the many benefits of pulse crops that he has experienced including their nitrogen fixation capabilities and their efficiency with water use. Through his work on the North Dakota Dry Pea and Lentil Council and the USA Dry Pea and Lentil Council he has expanded his personal network to include many agronomists and research scientists that have really helped him not only fine tune his operation but also support future pulse crop growers. He goes on to share the many advantages the councils offers producers by way of research and financial support.
“Your revenue protections and your crop insurances and stuff, that's kind of directly put together by the US Dry Pea and Lentil Council….They were a dog in the fight that helped get dollars to come back into the specialty crop side of things. I mean we're talking millions and millions of dollars that went back to producers that were growing pulse crops that were very, very beneficial.” - Kim Sauressig
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
At the time of this interview, Steve Sebesta was the director of the Foundation Seed Program at North Dakota State University and the Deputy Commissioner of the North Dakota State Seed Department. Steve has since retired from these positions, so we were very lucky to capture his years of experience and expertise in this area before his retirement. In this episode, Steve discusses the critical role of the foundation seedstocks program, how the plant variety protection act works and why seed needs to be certified.
“North Dakota is a little unique compared to most other states in that we have a county seed increase program. So when a new variety is released and we have foundation seed available, the counties decide whether or not they want to produce seed in their county of that new variety. And if they do, then their county grower, who is typically an experienced grower, will produce seed essentially for the county. It's not his seed. He doesn't have ownership of it. It's for the county seed grower. So it's a really good way to increase the amount of seed available of a brand new variety very quickly.” - Steve Sebesta
Germination success, variety identification and weed presence contribute to the certification of seed that allows for the label required for selling seed in North Dakota. North Dakota has the largest seed certification agency in the country, with between 250,000 and 300,000 acres of seed production every year. Of that, field peas is their third largest crop, with over 21,000 acres in 2023.
“A lot of the public varieties were funded by government programs, federal government programs. And so they needed a way to try to incentivize investment in research and development and production of new varieties. So they implemented the Plant Variety Protection Act which gives the variety owner the exclusive authority to determine who can and cannot produce seed of their product and market that seed. So there are a lot of infringements that are possible on a PVP variety that people need to be aware of.” - Steve Sebesta
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
Nicole Atchison is the CEO of PURIS Holdings, a vertically-integrated plant-based food company that operates from field to fork in primarily yellow peas. Nicole leads the agriculture side of the business, including contracting with growers, seed development and breeding, and innovation in product development. Her brother Tyler leads the ingredient side of the business. PURIS operates throughout the entire supply chain from developing genetics to developing new markets.
“So if you're making a high protein cereal, you need a different pea protein than if you're making a plant-based beverage, which is still using a pea protein. But those two pea proteins are slightly different. And that's really the innovation that we do on our processing side, is we create these different proteins with different functionalities so that they can work in these different applications.” - Nicole Atchison
Atchison describes the wet protein processing they are using that provides a unique protein stream with a lot of potential for furthering plant-based protein production. She sees potential for pulse proteins in providing protein sources for both consumer beverages and medical nutrition. As they ramp up production, PURIS Holdings is also active in ongoing efforts to regulate the impact of foreign pulse crop processing and imports affecting both global and domestic markets.
“I'm a huge advocate for pulse based ingredients because I do think that as much as we want and encourage people to have and eat whole pulses, that's not where the American consumer is today. We like convenient foods, packaged and processed. That's where our market is. And so we need to be able to drive these crops into those channels as well and that's why processing is so critical to the market.” - Nicole Atchison
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
Dr. Eric von Wettberg is a professor at the University of Vermont and the director of the Vermont Agriculture Experiment Station. His research program focuses on understanding crop domestication as a means to harness the diversity of crop wild relatives to breed crops with improved climate resilience and stress tolerance. In this episode we discuss Von Wettberg’s work in pulses, his adventures in germplasm collection, the challenges and opportunities of maintaining genetic diversity, and the importance of protecting crop wild relatives.
“We're never fully done with collecting germplasm because there might be more out there and those plants are in a natural habitat. That habitat is not static, so they may be changing over time. There's diseases in some natural populations and disease resistance can actually evolve. So we need to be collecting germplasm continually, and we should even have preserves or parks that hold crop wild relatives. To let them evolve so that we can let evolution generate more resistant varieties for us.” - Dr. Eric von Wettberg
Von Wettberg shares his concern with the loss of genetic variation in crops, particularly pulses, as a result of human cultivation and selection. A lack of genetic variation reduces resilience of these crops to expected effects of climate change such as drought and disease. In his research group, they are using a new collection of the wild relatives of chickpea to restore genetic variation to cultivated chickpea, and to better understand the genetic basis of flowering time and drought tolerance.
“Any mutation, whether it's a new mutation or an old mutation, is helpful. But by collecting, we're more likely to find the old mutations… By looking in wild populations, there's just been more time for those mutations to occur, which makes them a helpful place to look.” - Dr. Eric von Wettberg
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
Charlie Cahill developed his knowledge of dryland farming during the 1990s, ultimately becoming what one nominator called “the go-to guy” for information on agronomic practices and seed genetics in the region. A graduate of Montana State University, Cahill has served on the board of the Montana Seed Growers Association and helped create the pulse checkoff program in Montana, which allows growers a voice in how their contributions are invested around the state.
“Farmers traditionally have been used to being able to keep and trade their own seed amongst other growers, and this has been going on (for) an exceptional amount of time. Well, if you don't have money to actually go into the breeding programs, you don't get new stuff. And if you look at all of the crops that have money in them: corn, canola, soybeans. We spend a lot of money for the seed, but at the same time, you'll notice we also get really neat stuff.” - Charlie Cahill
Cahill joins the show to talk about the current state of the seed industry in Montana, some inside information on the seed business and what’s driving seed choices, and trying to bring together market demand and producer needs into a valuable and profitable seed technology.
“The demand right now is far outstripping the supply on (lentil) seed. We are probably one of the largest sellers of lentil seed in the United States and we're sold out at the moment, and our production was okay. So that gives you an idea.” - Charlie Cahill
This Week on Growing Pulse Crops:
Growing Pulse Crops Podcast is hosted by Tim Hammerich of the Future of Agriculture Podcast.
Dr. Michelle Hubbard leads a field, greenhouse, growth chamber and lab based research program at Agriculture and AgriFood Canada, a part of the Canadian federal government. Based in Swift Current, Saskatchewan, her work focuses on pulse pathology, including important diseases like ascochyta blight of chickpea, root rot of pea and lentil and anthracnose of lentil. Hubbard discusses a mystery illness that has been popping up in parts of Saskatchewan and other areas in recent years. She shares the symptoms of this disease and the extensive research that has been done to try to understand what exactly is going on so that we can start to manage for it in the future.
She provides insights not only into pulse pathology, but also into the approach scientists like herself take to try to find answers for farmers.
“It is frustrating, but it's also interesting and I keep going by thinking we're learning other things. Even if we're not finding an answer to this problem, we're learning other useful things like about drought and Verticillium and nematodes.” - Dr. Michelle Hubbard
The exact pathogenesis of the mystery illness in chickpeas continues to elude researchers despite major efforts. The disease first emerged in 2019 and made its mark by creating severe crop loss similar to ascochyta blight. However, these chickpeas did not demonstrate obvious girdling and patterns of being transmitted airborne like typical ascochyta blight. Drought stress followed by rainfall was another factor explored for explaining the unique symptoms observed in the field but this too was disproved in trials. Herbicide application without moisture was another factor explored and it too could not be replicated successfully. The investigation continues with Dr. Hubbard offering this advice to producers.
“Keep an eye out for it, but (don't) panic about it. If they want to find out more information or pictures, there's a lot of pictures on the Saskatchewan Pulse Growers website, as well as some old reports dating back to the beginning of the issue that explains it really well and shows pictures and examples. Or if somebody wants to contact me, I'm happy to send pictures or to help you find a link where you can find more pictures.” - Dr. Michelle Hubbard
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
Dr. Tom Warkentin is a professor at the University of Saskatchewan where he is part of a team at the Crop Development Center. He has been a pulse crop breeder for about 30 years, mostly focused on field peas. Warkentin discusses the progress of his pulse crop breeding program over the decades, including varieties that have had a big impact on the industry. He also shares how he balances the need to improve genetics on multiple fronts all at once, like yield, quality, lodging, disease resistance, protein and a number of other factors. He’ll also cover what’s in the pipeline currently for new varieties and what questions and areas of research are still left unanswered.
“Definitely yield is first and we keep pushing to improve yield. I think if we go through the records we’ve probably boosted yield 1 to 2% per year if you take the long-term average over a couple of decades. Second trait that farmers definitely like is lodging resistance, so the ability to stay upright. That has remained as probably the second most important trait in pea varieties over the last 30 years.” - Dr. Tom Warkentin
Other priorities they focus on include protein quality and quantity, root rot resistance and ascochyta resistance. Dr. Warkentin discusses where these priorities come from including producer requests, processor preferences and consumer demands. Employing different techniques to highlight different characteristics is a lengthy difficult process in plant genetics that Dr. Warkentin’s team have been fine-tuning for years.
“So a combination of conventional breeding and marker assisted breeding and screening material with the actual pathogens, either indoors or outdoors. All of those approaches we're using.” - Dr. Tom Warkentin
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
Zack Bateson is the Research Manager at the National Ag Genotyping Center based in Fargo, North Dakota. You heard a little bit about the work the National Genotyping Center is doing in episode five with Dr. Brian Jenks. In this episode we dive deeper into the services they offer to provide DNA testing for farmers and agronomists. Bateson got his start in DNA-based testing working in wildlife biology with prairie chickens and lizards, but says all of the skills can be applied to any organisms including variety detection, herbicide resistance, and soil pathogens, which is where he focuses today.
“Growers can send us kochia and we can genotype them for the resistance to group 14. Then they're able to have a discussion with either their agronomists or other consultants to see whether it can be another actionable spraying opportunity or if there's something else that they can do about these resistant weeds.” - Zach Bateson
The National Ag Genotyping Center is a private nonprofit diagnostic lab that provides genetic testing to identify pathogens, pests and genetic traits such as resistance to herbicides. This valuable information can help growers determine next steps in treatment of fields without having to rely solely on potentially costly trial and error practices. Alongside these established practices they are also developing identification testing for different causes of root rot.
“The work involved is simpler for a person to do, especially with robotics, we can not only do tens of samples per day, but we can extract from hundreds of samples per day. We can test for multiple genetic markers throughout the day, so we're talking hundreds and almost thousands of data points that can be processed and reported out.” - Zach Bateson
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
Dr. Brian Jenks is a weed scientist at North Dakota State University based in Minot. He has been in this role since 1997 and over that time he has seen an alarming rise in resistance to many of our herbicides from certain weeds, especially in kochia. In this episode Jenks discusses the resistance problem and some of the work underway to help farmers manage these weeds that are getting tougher every year to control. He also shares an exciting new offering from the Ag Genotyping Center to identify resistance.
“I've been polling farmers this winter and the most common answer I get is about 80%. Farmers think about 80% of their kochia is roundup resistant. So it's a majority of the kochia and we know that there's group 14 resistance out there to Aim and Sharpen. So if we want to control kochia in a burn down, we need to know if Aim and Sharpen are going to work for us.” - Dr. Brian Jenks
Spray droplet size, travel speed when spraying and the height of the kochia when treated are all factors that greatly affect the success of herbicide use. True resistance however will be able to survive each of these adjustments. Developing new mechanisms of action and products to circumvent the resistance is a lengthy difficult process with no clear immediate solution in site. With resistance observed in many commonly used herbicides, gramoxone seems to be the only one that remains consistently effective. Unfortunately resistance is likely to emerge here too without other measures being taken.
“The worst thing we can do is probably a two year rotation where we're using the same herbicides and the same crops over and over. I'm optimistic if we can diversify our crops to get a minimum of 3, 4, 5 crops in the rotation, and then use 5, 6, 7 different modes of action with our herbicides.” - Dr. Brian Jenks
This Week on Growing Pulse Crops:
Growing Pulse Crops is produced by Dr. Audrey Kalil and hosted by Tim Hammerich of the Future of Agriculture Podcast.
The podcast currently has 78 episodes available.
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