Chris Clark - Is Wisconsin liquid dairy manure meeting row crop micronutrient needs?

2026 Dairy Symposium hosted by UW–Madison: “Is Wisconsin liquid dairy manure meeting row crop micronutrient needs? 28 years of manure micronutrient content insight” – Chris Clark, UW–Madison Division of Extension Clark is a nutrient and soil management education specialist with UW–Madison Division of Extension, holding joint appointments with the Nutrient and Pest Management (NPM) Program and Extension in Northeastern Wisconsin. Her work focuses on delivering research-based education and outreach to farmers, researchers, and ag industry professionals on nutrient management, soil health, and practices that improve crop quality, farm profitability, environmental stewardship, and resilient agricultural landscapes. Chris brings extensive applied experience from more than a decade in commercial agricultural testing and nine years as a middle and high school agriculture educator and FFA advisor, and she is a Wisconsin Certified Crop Advisor with a background in agricultural education from UW–River Falls. Project summary: Has the content of Wisconsin dairy manure changed over time? And is that manure meeting the micronutrient needs of crops? This includes secondary nutrients: calcium, magnesium, sulfur, and micronutrients: boron, copper, zinc, manganese, and iron, for which manure tests are available. Chris Clark and UW–Madison teammates Natasha Rayne, Jerry Clark, Dan Marzu, and industry partner AgSource Laboratories investigated the insights from 28-years of Wisconsin liquid manure data for the answers to be shared in this presentation. 🌐 VISIT OUR WEBSITE: http://dairyinnovationhub.wisc.edu 👥 OUR SOCIAL MEDIA: Twitter: https://x.com/dairy_hub Facebook:   / dairyinnovationhub   LinkedIn:   / dairy-innovation-hub