The Effect of Soil Fertilizing With Humic Acid And Agricultural Sulfur on Some Traits of Okra Plant | ||
| مجله علوم و صنایع غذایی ایران | ||
| Volume 23, 171-ویژه نامه, February 1405, Pages 238-247 PDF (328.99 K) | ||
| Document Type: مقاله پژوهشی | ||
| DOI: 10.48311/fsct.2026.118702.83021 | ||
| Authors | ||
| Leqaa Taher Kamel* 1; Rusul Mahdy Salih2; Weam Ahmed Alwan1; Zainab A.Fadhil1; Doress Taher Hasan1; Saja Musbah Jurmut3 | ||
| 1Department of Biology ,Collge of Education for pure science , Diyala University ,Diyala ,Iraq | ||
| 2Department of Horticulture and Landscape Engineering, Collge of Agriculture, Diyala University ,Diyala ,Iraq | ||
| 3Department of Field crops , Collge of Agriculture, Diyala University ,Diyala ,Iraq | ||
| Abstract | ||
| Okra (Abelmoschus esculentus) is an important vegetable crop valued for its nutritional and economic significance. Enhancing soil fertility through organic and mineral amendments such as humic acid and agricultural sulfur can play a key role in improving its growth and productivity. A factorial experiment was conducted at the nursery of the College of Education for Pure Sciences, University of Diyala, from March 1, 2025, to April 30, 2025, to evaluate the effects of soil fertilization with humic acid and agricultural sulfur on some growth characteristics of okra plants. The treatments consisted of a control (no fertilization), humic acid at two concentrations (5 and 10 g L⁻¹), and agricultural sulfur at two concentrations (5 and 10 g L⁻¹), arranged in a completely randomized design (CRD) with three replications. Black plastic pots (20 cm diameter, 20 cm height) were used, each containing 5 kg of soil. The fertilizers were added to the soil after germination and seedling emergence, and plant responses were observed daily throughout the study period, which lasted 59–61 days. The results showed that humic acid fertilization at 10 g L⁻¹ produced the highest significant increases in plant height (159.6 cm), fresh weight (78.0 g), and dry weight (54.0 g). The highest chlorophyll content (74.3 SPAD units) was recorded with agricultural sulfur fertilization at 10 g L⁻¹. Agricultural sulfur fertilization also resulted in significant improvements in other traits, although the magnitude of these increases was generally lower than those observed with humic acid fertilization. | ||
| Keywords | ||
| Okra; organic fertilizers; humic acid; sulfur | ||
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