Nitrogen and sulphur fertilizing efficiency agronomical characteristics of sugar-cane culture - Macedo, Felipe Barros; Luz, Pedro Henrique de Cerqueira; Herling, Valdo Rodrigues; Francisco, Agostinho Domingos Miguel; Faria Letícia de Abreu; Alves, Ana Carolina; Palma, Fernando; Silva, Fernanda de Fátima da (ASA-CSSA-SSSA International Annual Meetings, 2013)