Systems Approach to Nitrogen Management
19
Systems Approach to Nitrogen Management Precision Nutrient Management Extension Specialist D. Brian Arnall
description
Systems Approach to Nitrogen Management. Precision Nutrient Management Extension Specialist D. Brian Arnall. About myself. My Family Upbringing was not Ag. Ok State University 70 % Extension 30 % Teaching 60 % Research - PowerPoint PPT Presentation
Transcript of Systems Approach to Nitrogen Management
Systems Approach to Nitrogen Management
Precision Nutrient Management Extension Specialist
D. Brian Arnall
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
About myself
Extension:◦ From Liming to Variable Rate Applications
Teaching:◦ Soil Nutrient Management ◦ Precision Agriculture
Crops:◦ Wheat, Corn, Sorghums, Alfalfa, Canola, Sesame,
Cotton◦ Research: focus on applied research ◦ Product/deliverable oriented
My Work
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
Research
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
NUE in the Midwest
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
NASS
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
Systems Approach
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
To Begin
Timing and Method Time with Producers and Educators
Cropping Systems◦ Rotations◦ Cover Crops
Time with Peers
Research Areas
Nitrogen sources and ect. ◦ As needed◦ Currently active◦ Due to Extension Responsibility
Respect from Clientele
Research Areas
In-season cues
Research Areas
KFGO.com
Agsource.crinet.com
Resolution of application area◦ Driven by Producer and Landscape
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
Research Areas
Close ties to those who can design and build are important.
Ties to Engineers
Potential Products Impacts
UM Expectations
Experience with Fertilizer Check-off Product Based Approach New Perspective Team oriented Visibility People
What Can I Bring
Thank you!!!
Brian Arnall373 Ag [email protected] available @ www.npk.okstate.eduTwitter: @OSU_NPKFacebook.com/OSUNPKYouTube Channel: OSUNPK
www.extensionnews.okstate.edu
