1 / 19

Systems Approach to Nitrogen Management

Brian Arnall, an Extension Specialist at Oklahoma State University, focuses on nitrogen management and precision nutrient applications. With a robust background in agricultural research, teaching, and extension services, he emphasizes a systems approach to increase nitrogen use efficiency (NUE) while improving crop yields in various commodities, including corn, wheat, and alfalfa. His research includes applied methods for nutrient management, sensor technologies, and sustainable practices that aim to minimize nitrogen losses and environmental impacts in agricultural landscapes.

taurus
Télécharger la présentation

Systems Approach to Nitrogen Management

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Systems Approach to Nitrogen Management Precision Nutrient Management Extension SpecialistD. Brian Arnall

  2. About myself • My Family • Upbringing was not Ag. • Ok State University • 70% Extension • 30% Teaching • 60% Research • Responsibilities' described as: If it is a commercial crop that receives commercial fertilize, you handle both

  3. My Work • Extension: • From Liming to Variable Rate Applications • Teaching: • Soil Nutrient Management • Precision Agriculture • Crops: • Wheat, Corn, Sorghums, Alfalfa, Canola, Sesame, Cotton • Research: focus on appliedresearch • Product/deliverable oriented

  4. Research • Cross Discipline: 13 PSS, 8 DASNR • N application methods and products • Sensor based N rate technologies • Large scale • Sensor development and advancement • Expansion into other crops • NUE improvement in wheat Breeding • Fertilizer Management and Weed control • N2O emission reduction • P use by wheat • Precision Technologies in Horticulture

  5. NUE in the Midwest • Nitrogen losses from agricultural landscapes in the Midwestern United States • Production and Environment • Close ties to Chesapeake Bay Counterparts • Mississippi River + Corn + Tile Drainage =Minnesota is a Target • Commodity groups know it. • The Battle: Improve NUE& Improve Yield

  6. NASS • 125 lbs N/ac over 6.7 million acres • .65 lbs N /bu • .75 assuming 50% following beans • 420,000 tons of N applied. • 08 Randall & Vetch 51-72%NUE • Increase NUE by 1% from 62.5 to 63.5 • 4000 tons N • $4 million (@.5) : $.54 / ac • 9 million Bushels : 1.2 bu/ac

  7. Systems Approach • Systems approach is a result of my Extension Experience • Not all gains are made with new tech. • Large gains possible from small things • Education on interaction’s increases adoption

  8. To Begin • Start with No-Assumptions • Initiation of a few studies • Spend time (weeks/months) with Producers • What is the current system/situation • Where do they see the future • Understand the Producer and Educator mentality

  9. Research Areas • Timing and Method • Time with Producers and Educators • Cropping Systems • Rotations • Cover Crops • Time with Peers

  10. Research Areas • Nitrogen sources and ect. • As needed • Currently active • Due to Extension Responsibility • Respect from Clientele

  11. Research Areas • In-season cues KFGO.com Agsource.crinet.com

  12. Research Areas • Resolution of application area • Driven by Producer and Landscape

  13. Research Areas • In-Season Sensors • Four Keys to Algorithm (Stanford Equation) • Yield Prediction • Via Sensor • Responsiveness • Via N-Rich Strip • Nitrogen Use Efficiency • Via BGE • N content in grain or forage • Via the Book

  14. Ties to Engineers • Close ties to those who can design and build are important.

  15. UM Expectations • Potential • Products • Impacts

  16. What Can I Bring • Experience with Fertilizer Check-off • Product Based Approach • New Perspective • Team oriented • Visibility • People

  17. Thank you!!! www.extensionnews.okstate.edu Brian Arnall 373 Ag Hall 405-744-1722 b.arnall@okstate.edu Presentations available @ www.npk.okstate.edu Twitter: @OSU_NPKFacebook.com/OSUNPK YouTube Channel: OSUNPK

More Related