@article{carvalho_bustamante_almondes_figueiredo_2014,  title={Forms of phosphorus in an oxisol under different soil tillage systems and cover plants in rotation with maize},  volume={38},  ISSN={0100-0683},  url={https://doi.org/10.1590/S0100-06832014000300029},  DOI={10.1590/S0100-06832014000300029},  number={3},  journal={Revista Brasileira de Ciência do Solo},  publisher={Sociedade Brasileira de Ciência do Solo},  author={Carvalho, Arminda Moreira de and Bustamante, Mercedes Maria da Cunha and Almondes, Zayra Azeredo do Prado and Figueiredo, Cícero Célio de},  year={2014},  month={May},  pages={972–979} }