@article{guimarães_cruz_ferreira_taniguchi_2012,  title={Chemical properties of soils treated with biological sludge from gelatin industry},  volume={36},  ISSN={0100-0683},  url={https://doi.org/10.1590/S0100-06832012000200034},  DOI={10.1590/S0100-06832012000200034},  number={2},  journal={Revista Brasileira de Ciência do Solo},  publisher={Sociedade Brasileira de Ciência do Solo},  author={Guimarães, Rita de Cássia Melo and Cruz, Mara Cristina Pessôa da and Ferreira, Manoel Evaristo and Taniguchi, Carlos Alberto Kenji},  year={2012},  month={Mar},  pages={653–660} }