FARAHANI, H. A.; VALADABADI, A.; RAHMANI, N. EFFECTS OF NITROGEN ON OIL YIELD AND ITS COMPONENT OF CALENDULA (CALENDULA OFFICINALIS L) IN DROUGHT STRESS CONDITIONS. African Journal of Traditional, Complementary and Alternative Medicines, [S. l.], v. 6, p. 336–337, 2009. Disponível em: https://journals.athmsi.org/index.php/ajtcam/article/view/674. Acesso em: 7 may. 2024.