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Spring Wheat in 2008

Spring Wheat in 2008. Shawn P. Conley and John Gaska Soybean and Wheat Specialist University of Wisconsin, Madison. Outline of Discussion Points. Variety selection and key traits to consider Fertility management (Nitrogen) Management Timing Grading characteristics. Basis $2.00.

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Spring Wheat in 2008

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  1. Spring Wheat in 2008 Shawn P. Conley and John Gaska Soybean and Wheat Specialist University of Wisconsin, Madison

  2. Outline of Discussion Points Variety selection and key traits to consider Fertility management (Nitrogen) Management Timing Grading characteristics

  3. Basis $2.00

  4. Grading Characteristics Wheat Grades: #1 58.0 pound test weight Subclasses: Dark northern spring: (>75% dark, hard, vitreous) Northern spring: (25-74% dark, hard, vitreous) Red spring: (>25% dark, hard, vitreous) Protein: 14.0% (based on 12% moisture) #1 factor in determining value of your wheat Falling number: alpha-amylase activity 250 to 300 base value required for baking

  5. Variety Selection It’s easy, varieties are actually named

  6. Variety Survey - 2007

  7. FHB Ratings

  8. Leaf Rust Ratings

  9. Southern Locations

  10. Straw Strength

  11. Scatter Plot - 2007 16.0 Fireball Glenn 15.5 Vantage Granite Steele-ND Alsen RB07 15.0 Howard Briggs Blade Kelby Oklee Protein Rush Banton 14.5 Granger Freyr Ada Oxen Faller Hat Trick Knudson 14.0 Trooper Traverse 13.5 Bakker Gold Bigg Red Polaris 13.0 Hot Shot 85 95 105 115 Grain Yield (% of mean)

  12. Southern Average (2006-2007)

  13. Picks

  14. Spring Wheat Grain YieldArlington, WI 2007 LSD = 5 bu/ac * * * * * * *

  15. Spring Wheat Grain YieldSpooner Irrigated 2007 LSD = 5 bu/ac * * * *

  16. Spring Wheat Grain YieldSpooner Non-Irrigated 2007 LSD = 3 bu/ac * * *

  17. Spring Wheat Variety x FungicideArlington, WI 2007 LSD Fungicide = NS Variety = 5.3 Var x Fung = NS

  18. Seeding Operations ‘This is not your grandfather’s drill’

  19. Population SDR= [(Desired Stand in Plants/Acre) / (1 - Expected Stand Loss)] [(Seeds/Pound) x (Percentage Germination)] Initial Stands:

  20. Depth Depth control critical component: You can not afford a delay in emergence. Increases problems with root rots. Ideal seeding depth is 1” – 1.5”

  21. Temperature Q: What is the correct order to plant small grains? Q: Has the drought in WI helped our spring wheat?

  22. Fertility Management

  23. Grain Yield vs Protein 118 Sims and Rehm, 2003

  24. Grain Yield versus NUE Protein: 14.4% @ 90 lbs N; 15.2% @ 120 lbs. N Sims and Rehm, 2003

  25. Grain Protein versus NUE 118 Sims and Rehm, 2003

  26. Spring Wheat Response to N at Spooner, WI 2007

  27. Fertility Management Soil test. To get a reference point Apply according to recommendation: Refer to Small Grains Field Guide Eastern MN and OM% >3.0: 70 lb N/A Western MN: Nrec=(YGx2.5) – STN – NPC (=40lb N/A for soybean) WI 60 lb N/a for 2.0 to 9.9% OM 90 lb/a for <2.0% OM Split applications: Be aware that N can not be rate limiting at 5 leaf stage Splits only recommended for very sandy soils.

  28. Management Stages

  29. Optimizing Scouting Time In HRSW: Fifteen distinct crop growth stages. Five of these are critical in HRSW: 2 leaf stage - stand count, weed ID) 4 to 5 leaf stage - weed ID, insects, and fungi flag leaf emergence - insects, and fungi heading to flowering - insects, and fungi physiological maturity - pre-harvest management

  30. Scouting Activities

  31. Order: (800) 876-8636 (701) 231-1882 shop.extension.umn.edu Jochum Wiersma Phone: (218) 281-8629 Email: wiers002@umn.edu Acknowledgements

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