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Effect of Phosphorus Placement, Phosphorus Rate, Seeding Rate and Row Spacing on Canola

Effect of Phosphorus Placement, Phosphorus Rate, Seeding Rate and Row Spacing on Canola. Paul Hendrickson NDSU Carrington Research Extension Center. Justification. Direct Seeding One Pass Operation Maximum N Rates in Seed Row 6-inch row = 10 lb 12-inch row = 5 lb

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Effect of Phosphorus Placement, Phosphorus Rate, Seeding Rate and Row Spacing on Canola

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  1. Effect of Phosphorus Placement, Phosphorus Rate, Seeding Rate and Row Spacing on Canola Paul Hendrickson NDSU Carrington Research Extension Center

  2. Justification • Direct Seeding • One Pass Operation • Maximum N Rates in Seed Row 6-inch row = 10 lb 12-inch row = 5 lb • Mid-row Banding fertilizer • 14-inch Rows • Immobile Nutrient Uptake

  3. Effect of Row Spacing and Seeding Rate on Canola

  4. Materials and Methods Two Hybrids • Invigor 4870 (2005, 2006) or Invigor 5550 (2008) - larger plant type • Hyola 357 Magnum - smaller plant type • Row Spacing • 7 inches • 14 inches • Seeding Rate • 7 live seeds / square foot • 14 live seeds / square foot

  5. Results

  6. Seeding Rate

  7. 2005, 2006 Row Spacing

  8. 2008 Hybrid

  9. 2008Row Spacing

  10. Effect of Phosphorus Placement and Rate on Canola

  11. Materials and Methods • Invigor 4870 planted in 14 inch rows • 8 live seeds / square foot • Two Sites (2005 and 2006) • Q, Landon E

  12. Phophorus ppm (Olsen) Phophorus Recommendation

  13. Materials and Methods • Phosphorus Rate • 2005: 0, 11.25, 22.5, and 45 lb P2O5/acre • 2006 0, 22.5, 45, and 90 lb P2O5/acre • Phosphorus Placement • In-row, Mid-row band, Every-row, and Broadcast • Phosphorus Source • 11-52-0

  14. Results

  15. 0 11.25 45 45 22.5 22.5 0 0 45 11.25 45 22.5 11.25 11.25 0 22.5 MR ER B IR

  16. 2005 Plant Height Landon E LSD 0.05 = 4

  17. 2005 Seed Yield

  18. 2005 Seed Yield

  19. 2006 Landon E LSD 0.05 = 6

  20. 2006 Stand Reduction Q LSD 0.05 = 8

  21. 2006 Ground Cover Q LSD 0.05 = 8

  22. 2006 P Placement

  23. 2006 P Rate

  24. 2008Effect of Phosphorus Placement on Canola • Objective; • Evaluate the effectiveness of mid-row banding phosphorus fertilizer. • Collect plant tissue samples to determine when and how efficiently the plants utilize the phosphorus.

  25. Materials and Methods • Invigor 5550 • 14 pure live seeds/ft2 • 4 Sites • Langdon • Carrington – Low, Medium, Irrigated

  26. Materials and Methods Site Soil Test Yield Goal Applied Low 5 ppm P2O5 2000 lb 17 lb P2O5 Medium 10 ppm P2O5 2000 lb 9 lb P2O5 Irrigated 9 ppm P2O5 4000 lb 22 lb P2O5 Langdon 9 ppm P2O5 17 lb P2O5

  27. Phosphorus Content

  28. Phosphorus Content

  29. Phosphorus Content

  30. 2008 Seed Yield

  31. Summary • Seeding Rate • 13% increase in seed yield as the seeding rate increased from 7 to 14 live seeds/ft2 • Row Spacing • Smaller plant type (Hyola 357 Magnum) • Decreased yield as row spacing increased • 2 out of the 3 years • Larger plant type (Invigor 4870) • Yields were similar with 7 and 14 inch rows

  32. Summary • Phosphorus Rate • Recommendations accurate • Phosphorus Placement • Minimal impact on yield • Injury with in-row application as rate increased • Reduction in plant growth with mid-row band application when the soil P levels were low

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