Ammonia volatilisation from urease inhibitor-treated urea applied to sugarcane trash blankets - Cantarella, Heitor; Trivelin, Paulo Cesar Ocheuze; Contin, Teodoro Leonardo Michelucci F; Dias, Fábio Luis Ferreira; Rossetto, Raffaella; Marcelino, Rafael; Coimbra, Renato Badran; Quaggio, José Antonio (Scientia Agricola, 2008)