@article{savini_koala_kihara_2015,  title={Minjingu phosphate rock availability in low-pH highly weathered soil as affected by added salts},  volume={72},  ISSN={0103-9016},  url={https://doi.org/10.1590/0103-9016-2014-0315},  DOI={10.1590/0103-9016-2014-0315},  number={5},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Savini, Isaac and Koala, Saidou and Kihara, Job},  year={2015},  month={Sep},  pages={440–451} }