Print version ISSN 0103-9016
ALMEIDA, Claudinei de et al. Foliar and surface dressing of urea for the common bean crop. Sci. agric. [online]. 2000, vol.57, n.2, pp. 293-298. ISSN 0103-9016. http://dx.doi.org/10.1590/S0103-90162000000200016.
The objective was to determine common bean response to different urea concentrations (0, 40, 60, 80, 100, and 120 g kg-1). N was supplied through leaves at different hours of application (8:00 AM, 04:00 PM, and 08:00 PM), in either the presence or the absence of N (urea) soil surface dressing at the rate of 40 kg ha-1 N. The soil used was a clayey Typic Haplustox . The experimental design consisted of randomized blocks in a factorial scheme 5x3 with five urea rates and three times of application, with four replicates. Plant characteristics and degree of fitotoxicity were measured. It is concluded that N applied to the soil increased grain yield. N applied to leaves did not affect the agronomic characteristics nor bean yield.
Keywords : Phaseolus vulgaris; beans; nitrogen; foliar fertilization.