The objective of this work was to evaluate the effects of growth regulator applied in the seed and to foliate and cover crops in the productivity of the irrigated common bean plant. The experimental design was a randomized block on split-plot, with four replications. The plots of the two experiments consisted of CROPS used as soil cover, as the leguminous: Cajanus cajan, Stylosanthes guianensis, Crotalaria spectabilis, and the grasses: Pennisetum glaucum, Sorghum bicolor, Panicum maximum, Brachiaria brizantha, and B. brizantha associated with Zea mays. The subplots consisted of the following treatments: control; 500 mL of growth regulator (RC) in 100 kg of seeds; 250 mL of RC per hectare in the V4 development stage, foliar treatment; and, 500 mL RC in 100 kg of seeds and 250 mL of RC per hectare via foliar, in the V4 development stage. To the 84 days after the cut of the cover crops common bean cultivar BRS Valente was sown. They were evaluated the grain yield, and its components. The common bean grain yield did not significantly influenced the treatments with growth regulator applied via seeds and foliar. The common bean grain yield was positively influenced by predecessor cover crops.
Phaseolus vulgaris L.; vegetable hormones; Cerrado; savanna
