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Purdue-Indiana Seed Industry Forum: Crop Production Shawn P. Conley

Purdue-Indiana Seed Industry Forum: Crop Production Shawn P. Conley. 7 Faculty Shawn P. Conley Bob Nielsen Tony Vyn Sylvie Brouder Brad Joern Dev Niyogi Jim Camberato 3 technicians 13 graduate students. Research and Extension PI’s and Staff.

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Purdue-Indiana Seed Industry Forum: Crop Production Shawn P. Conley

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  1. Purdue-Indiana Seed Industry Forum: Crop ProductionShawn P. Conley

  2. 7 Faculty Shawn P. Conley Bob Nielsen Tony Vyn Sylvie Brouder Brad Joern Dev Niyogi Jim Camberato 3 technicians 13 graduate students Research and Extension PI’s and Staff

  3. Application Technology and Plant Health Promotion

  4. Spray Canopy Penetration

  5. Row spacing by wheel track damage

  6. Yield loss by boom width

  7. Application timing by wheel track damage

  8. Implications of Aerial Application

  9. Seed Quality and Composition Data • Seed size and percent oil and protein • Uniformity • Seed vigor/viability • Disease considerations (FLS) • Late glyphosate tank-mix applications

  10. Crop Phenology and Climatology • High Yield Soybean Systems • Micro-Nutrient Applications

  11. Revisit Current Recommendations • Seeding rate issues • Cost • Herbicide technology • Equipment – row spacing • Seed applied technology • Validation of soybean yield estimate tables

  12. Cropping Systems Research: Some Examples Tony J. Vyn, with assistance from farmers, graduate students, technicians, and colleagues

  13. Corn Yield Response to Tillage and Rotation, Clay Loam, West Lafayette, IN, 1975-2004.

  14. Long-term Tillage Effects on Soil Organic Matter (1975-2003, West Lafayette, IN) Soil Depth (in) Organic Matter (%)

  15. Isoflavone concentrations at different seed yield levels.† c b a a Yield levels (Mg ha-1) c b a a c b a a b b a a

  16. Plant to Plant Variability in Corn

  17. Delayed Maturity Delayed Silk Emergence Uniform Ear Size in High Yield Corn Accepted Hypothesis: Delayed Seedling Emergence Shorter Plants Smaller ears at harvest

  18. Individual Plant Yield Tentative Conclusions: For consistent individual ear weights and high yields we need to make sure “No Plant Left Behind!” - Emergence date Effect + Silking Date & Plant Height

  19. Large Plot Corn Research Examples • Effect of uneven plant spacing and ear size characteristics on grain yield and replant decisions • Interaction between corn seeding rates and nitrogen application rates • Evaluating the consequences of one-time yield monitor calibrations on estimated grain flow rates throughout the harvest season

  20. Questions

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