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Suppression of soybean diseases through the use of cover crops

Suppression of soybean diseases through the use of cover crops. Darin Eastburn University of Illinois. Collaborators. Loretta Ortiz-Ribbing – U. of Wisconsin, R iver Falls Jason Bond – Southern Illinois University Joel Gruver – Western Illinois University Steve Ayres – Aryes Farms

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Suppression of soybean diseases through the use of cover crops

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  1. Suppression of soybean diseases through the use of cover crops Darin Eastburn University of Illinois

  2. Collaborators • Loretta Ortiz-Ribbing – U. of Wisconsin, River Falls • Jason Bond – Southern Illinois University • Joel Gruver – Western Illinois University • Steve Ayres – Aryes Farms • Brad Hunt – Hunt Farms • Michael Plumber – Plumber Farms

  3. Champaign- Urbana Macomb Carbondale

  4. Cover Crops • On-station (40 x 200’ plots) • Cereal rye • White mustard • Rape • Canola • Winter fallow • On-farm (60 x 1000’ plots) • Cereal rye • Rape • Winter fallow

  5. Rye

  6. Rye

  7. Soybeans in standing rye

  8. Rape and Canola

  9. Rape and Canola

  10. Mustard Winterkilled

  11. Mustard Winterkilled, replaced by weeds

  12. Sample and data collection • Cover crop biomass • Soil samples • Fall and spring • SCN levels, DNA analysis, bioassay • Soybean stand counts • Soybean disease ratings • Early season (V3), foliar and root • Late season (R6), foliar and split stem • Soybean yields

  13. Q-PCR ASSAYS – UIUC, Fall (pre cover crop)

  14. Q-PCR ASSAYS – Ayres Farm, Fall (pre cover crop)

  15. Brown Stem Rot severity at Ayres Farm

  16. Soybean Stand Counts - UIUC

  17. Fallow Plots - UIUC

  18. Fallow Plots - UIUC Control Rhizoctonia

  19. Rye Plots - UIUC

  20. Rye Plots - UIUC Control Rhizoctonia

  21. SDS Ratings – UIUC

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