YASEEN, A. A.; AL-MOUSAWY, N. S. A. Response of tow varieties of okra (Abelmoschus esculentus L. Moench) to application methods of humic acid, zolfast and their effects on vegetative growth charectristics and yield. Al-Qadisiyah Journal of Pure Science, v. 19, n. 3, p. 54-75, 20 Jul. 2017.