@article{guedes_alleoni_correia_alves_ramos_fernandes_2020,  title={Tillage systems and cover plants change organic fractions of phosphorus in oxisol of eastern Amazonia},  volume={79},  ISSN={0006-8705},  url={https://doi.org/10.1590/1678-4499.20200047},  DOI={10.1590/1678-4499.20200047},  number={3},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Guedes, Rafael Silva and Alleoni, Luís Reynaldo Ferracciú and Correia, Benedito Luiz and Alves, Luis Wagner Rodrigues and Ramos, Sílvio Junio and Fernandes, Antonio Rodrigues},  year={2020},  month={Jul},  pages={434–446} }