@article{albuquerque_junio_sampaio_fernandes_prates_amaral sobrinho_2015,  title={Residual effect of sewage sludge fertilization on sunflower yield and nutrition},  volume={19},  ISSN={1415-4366},  url={https://doi.org/10.1590/1807-1929/agriambi.v19n10p1005-1011},  DOI={10.1590/1807-1929/agriambi.v19n10p1005-1011},  number={10},  journal={Revista Brasileira de Engenharia Agrícola e Ambiental},  publisher={Unidade Acadêmica de Engenharia Agrícola},  author={Albuquerque, Hermann C. de and Junio, Geraldo R. Zuba and Sampaio, Regynaldo A. and Fernandes, Luiz A. and Prates, Fabiano B. S. and Amaral Sobrinho, Nelson M. B. do},  year={2015},  month={Oct},  pages={1005–1011} }