Efficiency of applying urea and UTEC carbamide on rice crops Askhad Sheudzhen, Tatyana Bondareva, Oksana Gutorova and Pshimaf Khachmamuk E3S Web Conf., 285 (2021) 02044 Published online: 06 July 2021 DOI: 10.1051/e3sconf/202128502044