Nitrate leaching losses in 2024 after multiple dry years (1.0 NM)
Matt Helmers, professor and extension agricultural engineer, Agricultural and Biosystems Engineering, Iowa State University, Ames, IA

Thursday, 2:00-2:50 PM in Bishop AB
Thursday, 3:00-3:50 PM in Bishop AB

Iowa had a wet spring 2024 after multiple dry years. These wet following dry conditions impact nitrate-N loss from our annual cropping systems. This presentation will discuss what we have measured in 2024 and how it compares to 2013 which was also a wet spring preceded by a drought.

---

Know when to hold ‘em, know when to fold ‘em: Optimizing conservation placement with prairie (1.0 NM)
Tim Youngquist, agricultural specialist, Agronomy, Iowa State University, Ames, IA

Thursday, 1:00-1:50 PM in Skinner C
Thursday, 3:00-3:50 PM in Skinner A

Prairie strips are a proven conservation practice and a versatile tool for reducing soil erosion, filtering water, and increasing habitat for wildlife. Join us to hear from members of the STRIPS team about where and how to implement prairie into rowcrop agriculture to maximize production and conservation benefits.

---

A deep dive into nitrification inhibitors and the efficacy of commercially available products (1.0 NM)
Richard Roth, assistant professor and extension nitrogen specialist, Agronomy, Iowa State University, Ames, IA

Thursday, 1:00-1:50 PM in Bishop AB
Thursday, 3:00-3:50 PM in Bishop C

In this presentation we will provide a brief overview of what nitrification inhibitors are and how they behave in soils. We will discuss how these products impact the nitrogen cycle, the modes of action used to do so, and what past research says about the effectiveness of nitrification inhibitors. We will finish by reviewing our current research where we are comparing the efficacy of seven commercially available nitrification inhibitor products across different soils, soil moistures, soil temperatures, and product application rates.

---