@article{heldwein_loose_lucas_hinnah_bortoluzzi_maldaner_2014,  title={Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS},  volume={18},  ISSN={1415-4366},  url={https://doi.org/10.1590/1807-1929/agriambi.v18n09p908-913},  DOI={10.1590/1807-1929/agriambi.v18n09p908-913},  number={9},  journal={Revista Brasileira de Engenharia Agrícola e Ambiental},  publisher={Unidade Acadêmica de Engenharia Agrícola},  author={Heldwein, Arno B. and Loose, Luis H. and Lucas, Dionéia D. P. and Hinnah, Fernando D. and Bortoluzzi, Mateus P. and Maldaner, Ivan C.},  year={2014},  month={Sep},  pages={908–913} }