Componentes de crescimento e produção de três cultivares de soja utilizando diferentes adubações

Abstract

In recent years the soybean (Glycine max) was the culture that grew the most in Brazil, accounting for nearly half of the area planted in grain country, this growth is attributed to technological advances and techniques appropriate crop management applied by producers. The aim of this study was to evaluate the agronomic characteristics and yield components of three soybean cultivars for different fertilizations. The experiment was carried out from December 2012 to April 2013 in Areia, Paraíba, in the experimental area of the Departamento de Fitotecnia e Ciências Ambientais of Universidade Federal da Paraíba (UFPB). The experimental design was constructed of a 3 x 3 factorial conducted in blocks design, with three replications, totaling 27 plots. The experimental unit consisted of four rows of 5 m, spaced at 0,50 meters, the floor area was formed by the two central lines, where data were collected regarding the characteristics evaluated: plant height (cm), height insertion of the first pod (cm), number of pods per plant, seed hundred weight (g) and yield (kg / ha), the means were evaluated using the Tukey test at 5% probability. With respect to cultivate only parameter insertion height of first pod was significant at 5%, fertilizing parameters showed significance in plant height of the first pod and number of pods per plant all the 1% and fertilization x cultivar interaction was significant only for the parameter plant height at 1% probability.