@article{beck_sanchez_1996, title={Soil phosphorus movement and budget after 13 years of fertilized cultivation in the Amazon basin}, volume={184}, ISSN={["0032-079X"]}, DOI={10.1007/BF00029271}, number={1}, journal={PLANT AND SOIL}, author={Beck, MA and Sanchez, PA}, year={1996}, pages={23–31} }