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Carvalho, A. M. de; Bustamante, M. M. da C.; Kozovits, A. R.; Miranda, L. N. de; Vivaldi, L. J.; Sousa, D. M. de. Nitrogen Oxides Emission Related to Urea Broadcasting Fertilization under Conventional and No-Tillage Systems. PAB 2006, 41, 679-685.