@article{guimarães_caires_silva_rocha_2015,  title={Estimating gypsum equirement under no-till based on machine learning technique},  volume={46},  ISSN={1806-6690},  url={https://doi.org/10.5935/1806-6690.20150004},  DOI={10.5935/1806-6690.20150004},  number={2},  journal={Revista Ciência Agronômica},  publisher={Universidade Federal do Ceará},  author={Guimarães, Alaine Margarete and Caires, Eduardo Fávero and Silva, Karine Sato da and Rocha, José Carlos Ferreira da},  year={2015},  month={Apr},  pages={250–257} }