Response of the bean winter to irrigation management and nitrogen cover rates in no-tillage system

Palavras chave. Phaseolus vulgaris , evapotranspiracao, tanque Classe "A", ureia. Abstract . The objective of this study was to evaluate the components of yield of the dry bean to different irrigation management and nitrogen fertilization, no-tillage system in Aquidauana - MS, Brazil. The experiment was conducted at the Unidade Universitaria de Aquidauana - Universidade Estadual de Mato Grosso do Sul (UUA/UEMS), whose soil of the area was classified Alfisol, using the dry bean crop "Perola" sown in June 30 2007. The experimental design was randomized blocks with split plots consist of three blocks and two replications within each block. The plots were composed of three irrigation management; method Class A pan (CAP), Hargreaves-Samani equation (HARG) and management by tensiometers (TENS). The sub-plots were composed of four levels of nitrogen fertilization (0, 50, 100, 150 kg ha -1 ). The data were submitted to variance analysis and averages compared by Tukey test at 5% probability. It is concluded that the highest grain yield was obtained with the combination of irrigation management with Class A pan and the application of 100 kg ha -1 of nitrogen (11.91 g plant -1 ).