Common bean and rice make the daily staple food of the Brazilian population. There is need to improve crop management techniques to increase yield of common bean leading to a decrease in the production costs to enable reasonable prices for consumers. The objective of this study was to evaluate the effects of furrow opening mechanisms for fertilizer deposition (double disk and knife coulter), inoculation of seeds with Rhizobium tropici and different levels of nitrogen fertilization at sidedressing ( Zero, 60, 120 e 180 kg ha-1) on crop growth and yield, and leaf nitrogen (N) content. The experiment design was a randomized block in a factorial scheme 2x2x4 and it was set up on a clayey Oxisol in Selviria, State of Mato Grosso do Sul, Brazil, in 206 and 2007. Opening knife coulter caused larger final plant population than double disk and led to an increase the grain yield. The seed inoculation with Rhizobium tropici did not interfere in the leaf N content and in the grain yield. The sidedressing nitrogen fertilization provided increments of leaf N content and in the grain yield of winter common bean crop.
Phaseolus vulgaris L.; knife coulter; double disk; nitrogen fixation; winter common bean
