@article{silva_silva_silva_oliveira_ferreira_2010,  title={Green ear yield and grain yield of maize cultivars in competition with weeds},  volume={28},  ISSN={0100-8358},  url={https://doi.org/10.1590/S0100-83582010000100010},  DOI={10.1590/S0100-83582010000100010},  number={1},  journal={Planta Daninha},  publisher={Sociedade Brasileira da Ciência das Plantas Daninhas },  author={Silva, P.S.L. and Silva, K.M.B. and Silva, P.I.B. and Oliveira, V.R. and Ferreira, J.L.B.},  year={2010},  pages={77–85} }