The effect of the biological addition of trichoderma, fertilizer, spraying of amino acids and natural extracts on the growth and yield of broccoli. Samarra Journal of Pure and Applied Science, [S. l.], v. 2, n. 4, p. 79–88, 2021. DOI: 10.54153/sjpas.2020.v2i4.106. Disponível em: https://www.sjpas.com/index.php/sjpas/article/view/106. Acesso em: 16 apr. 2026.