@article{gava_trivelin_vitti_oliveira_2005,  title={Urea and sugarcane straw nitrogen balance in a soil-sugarcane crop system},  volume={40},  ISSN={0100-204X},  url={https://doi.org/10.1590/S0100-204X2005000700010},  DOI={10.1590/S0100-204X2005000700010},  number={7},  journal={Pesquisa Agropecuária Brasileira},  publisher={Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira},  author={Gava, Glauber José de Castro and Trivelin, Paulo Cesar Ocheuze and Vitti, André Cesar and Oliveira, Mauro Wagner de},  year={2005},  month={Jul},  pages={689–695} }