Figure 4
Weed seed bank in the 0–7, 7–14 and 14–21 cm soil layer of tillage systems in slurry fertilised (SL) plots without biodynamic preparations. Bars (means, standard errors) represent number of seeds m−2 in ploughed (CT, black) and reduced tillage (RT, dashed) plots, letters indicate significant differences (p < 0.05).
