This research aimed to evaluate the effects of no-tillage systems using crop rotation variations, conventional tillage, and minimum tillage on the dynamics of weed populations in the cerrado region in Brazil. The experiment was arranged in a randomized block design, four replications and five treatments, (two no tillage treatments consisting of summer and fall/winter crop rotations and two single crop treatments under conventional tillage and minimum tillage. Weed population dynamics was evaluated. The results showed that the no-tillage system was the most efficient for weed control with the following programs: soybean/sorghum - Crotalaria/corn - millet/soybean, winter corn/soybean); (winter corn/soybean - sunflower/corn - sorghum/soybean - sunflower/corn) and (Pigeon/pea/soybean - millet/soybean - winter corn/corn - sunflower/soybean) .
crop rotation
