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1 results

  • Effect of Crop Species, Tillage, and Rye (Secale cereale) Mulch on Sicklepod (Senna obtusifolia)

  • Barry J. Brecke, Donn G. Shilling
  • Journal:
    Weed Science / Volume 44 / Issue 1 / March 1996
    Published online by Cambridge University Press:
    12 June 2017, pp. 133-136

  • Field studies were conducted to determine the effect of crop species, tillage, and rye mulch on sicklepod growth. Competition from soybean and sunflower reduced sicklepod biomass by 19 and 77%, respectively. Sicklepod height was reduced by rye mulch. Rye root residue caused 49% reduction in sicklepod biomass, while whole plant rye mulch reduced weed growth an additional 12%. Crop competition reduced sicklepod shoot biomass to a greater extent when rye residue was present. Crop seed yield was 32% lower in tilled plots compared with no-tillage due to more weed competition in the tilled plots. In the presence of rye root residue, soybean yield showed a two-fold increase over no mulch or whole plant rye mulch. Sunflower yield increased by 30% in the presence of rye residue compared with no mulch.