Weed seedbank dynamics in three organic farming crop rotations

By John Teasdale, Ruth W. Mangum, J. Radhakrishnan, Michel A. Cavigelli. 2004

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The Selective Memory of Weed Seedbanks after 18 Years of Conservation Tillage (2011, background): “These would include the longer 4- yr rotation alternating short-season cereals with longer-season oilseeds, and the contrasting growth patterns, canopy structure, and management practices associated with phenologically diverse crops (Teasdale et al. 2004).”
Potential long-term benefits of no-tillage and organic cropping systems for grain production and soil improvement (2007, methodology): “Longer rotations that include a hay crop are more effective at maintaining lower weed seedbanks and improving weed control in organic systems (Teasdale et al., 2004).”
Forage Radish Cover Crop Suppresses Winter Annual Weeds in Fall and Before Corn Planting (2011, methodology): “Visual ratings of weed cover were chosen as the measure of weed abundance as this method is most predictive of weed infl uence on crop productivity in relatively large plots with a heterogeneous distribution of weeds (Teasdale and Cavigelli, 2010; Teasdale et al., 2004).”
Weed seedbank and community shifts in a long-term cropping systems experiment (2005, background): “Teasdale et al. (2004) also found a significant link between weed seedbanks and weed abundance at maturity in ORG production systems.”