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N Ramp Project

N Ramp Project. Robbie Peterson Oklahoma State University Plant and Soil Sciences robbie.peterson@okstate.edu. Fall 2008. Farm Visits Educational events Southern Plant Nutrient Conference OSU career fair Deer Workshop Wheat-Millet project Pre-plant and planting

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N Ramp Project

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  1. N Ramp Project Robbie Peterson Oklahoma State University Plant and Soil Sciences robbie.peterson@okstate.edu

  2. Fall 2008 • Farm Visits • Educational events • Southern Plant Nutrient Conference • OSU career fair • Deer Workshop • Wheat-Millet project • Pre-plant and planting • Harvest and data collection • Fall Management Meeting

  3. What is N Ramp? Nitrogen fertilizer Ramp Calibrated Strip (RCS) Variable rate sprayer

  4. “The Sprayer” • 100 gallon fertilizer tank • 35 gallon water tank • 5 hp motor • Centrifugal pump • 12’ fold down boom • 10 nozzle points • Three different nozzles

  5. 3 Solenoids 3 Different Nozzles Increase in Pressure Decrease in Pressure 12 Rates “Sprayer cont.”

  6. “The Brains” • Two control boxes • Trailer Box • Solenoids • Pressure • Rate of spray • Vehicle Box • Settings • GPS

  7. Settings • 4 Programs • GPS • Rinse • Flat rate • N Rich strip • Ramp • Calibration • 28-0-0

  8. 15” Spacing All ten nozzle sets 300lb/ac – 30lb/ac 12 Rates 30” Spacing 5 Nozzle sets 150lb/ac – 15lb/ac 12 Rates Rate Length 15’ – 50’ increments 180’ – 600’ Ramps GPS start N 33-55.7549’ W 97-23.2709’ GPS stop N 33-55.8354’ W 97-23.2768’ Ramp Settings

  9. 15” Spacing 30” Spacing Rate 15” (300-30lb/ac) 30” (150-15lb/ac) Length 100ft-1,000ft 25ft increments GPS Start Stop Flat Rate(N Rich strip)

  10. Cooperators • Contact cooperators • Pitched the project • Got the Okay • Winter pastures • Farm Maps • Locations • Soil maps

  11. Time to Spray • Found the Field • Soil Survey map • Pick Landmarks • Recorded Data into Spread Sheet • Date and time • Field • Treatment rate and length • GPS • Landmarks • CONTINUED TO SPRAY!!!

  12. Soil Samples! • Every Field • 15 Cores • 0-6 inches • Around the ramps

  13. Totals • 13 Cooperators • 43 Fields • 82 Ramps • 30 N Rich strips • 112 Strips

  14. Binder • Cooperator binder • Maps • Soil tests • Ours • Theirs • soil test spread sheet.xls • Field spread sheets

  15. Ramp data Date and time Field Treatment rate and length Landmarks GPS Field data Planting date Seeding rate Variety Fertilizer applied RCS Cooperators.xlsm Field Spread Sheet

  16. Why Apply N Ramps? • Mid-Season Nitrogen • Visual • Sensor based (Green Seeker) • Fertilizer Efficiency • Save $$

  17. N-Rich • Green Seeker • Senses plant greenness • NDVI • Calculates Nitrogen use efficiency • N-Rich • Farmers practice • http://nue.okstate.edu/

  18. Sensing • Drought conditions • Poor growing • Visual differences • NEED RAIN

  19. Sensing • Green Seeker • 3 Cooperators • Keith Varner • 3 fields • Jim Murphy • 3 fields • Stan Kimble • 4 fields

  20. Keith Varner

  21. Jim Murphy

  22. Stan Kimbell

  23. Goals • Objective? • Effectiveness of N Ramp and N Rich

  24. Special Thanks • Noble Foundation and Ag Division • Jim Johnson • NF Teams and Team Assistants • Jagadeesh Mosali • Shawn Norton • Rodney Pierce, Waylon Bamburg, Brian Preston • Tresa Runyan • Billy Phelps • Toni O’Brien

  25. QUESTIONS? GO POKES!

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