@article{korndörfer_lara-cabezas_horowitz_1999,  title={EFICIÊNCIA AGRONÔMICA DE FOSFATOS NATURAIS REATIVOS NA CULTURA DO MILHO},  volume={56},  ISSN={0103-9016},  url={https://doi.org/10.1590/S0103-90161999000200019},  DOI={10.1590/S0103-90161999000200019},  number={2},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Korndörfer, Gaspar Henrique and Lara-Cabezas, Waldo Alejandro and Horowitz, Nelson},  year={1999},  pages={391–396} }