RESPONSE OF MARIGOLD CULTIVARS TO DIFFERENT HUMIC ACID LEVELS . INTERNATIONAL JOURNAL OF ADVANCED RESEARCH AND REVIEW (IJARR), [S. l.], v. 3, n. 4, p. 85–97, 2018. Disponível em: https://www.ijarr.org/index.php/ijarr/article/view/341.. Acesso em: 24 jun. 2026.