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BINOTTI, Flávio Ferreira da Silva et al. Soil management and nitrogen fertilization on winter irrigated common bean. Bragantia [online]. 2007, vol.66, n.1, pp.121-129. ISSN 0006-8705. http://dx.doi.org/10.1590/S0006-87052007000100015.
The adoption of a system that facilitates to improve the conditions of soil, associated to nitrogen supply, can be very important to increase the plant efficiency IN using available resources. With the purpose of evaluating the effect of soil management and different stadia of nitrogen application on the development and production of winter irrigated common bean crop, a field experiment was carried out in Selvíria County, State of Mato Grosso do Sul, in the fall - winter growing season of 2002, 2003 and 2004. A randomized block design was used, with 24 treatments, constituted by three soil management system (heavy disk + leveling disk, chisel ploughing + leveling disk and no tillage) and eight stadia of nitrogen application (control without N application, at sowing - S, V3 stadium, V4 stadium, 1/2 S + 1/2 V3, 1/2 S + 1/2 V4, 1/2 V3 + 1/2 V4 and 1/3 S + 1/3 V3 + 1/3 V4), with 4 replications. As conclusion, for the three years of cropping, in only one of them, the no till system provided larger yield in the winter common bean irrigated by aspersion in relation to the conventional soil management. The stadia of nitrogen application did not provide differences in the yield of the bean plant. The nitrogen fertilization provided, on average of three crops, an increase of 62% in the yield of the common bean plant as compared with the control without N.
Keywords : Phaseolus vulgaris L.; heavy disk; chisel ploughing; no tillage; stadium of application and nitrogen.