The Yield of Silphium Perfoliatum L. Depending on the Conditions of Cultivation. Agricultural Engineering , [S. l.], v. 22, n. 2, p. 91–97, 2018. DOI: 10.1515/agriceng-2018-0019. Disponível em: https://ojs.agriceng.org/index.php/AgricEng/article/view/69.. Acesso em: 8 jan. 2025.