Impact of Suspended Phosphorus Fertilization and Humic Acid Foliar Application on Quantitative and Qualitative Yield Parameters of Cowpea Tuberous Roots (Vigna unguiculata L.): Implications for Nutritional Quality and Food Processing | ||
| مجله علوم و صنایع غذایی ایران | ||
| Volume 23, 171-ویژه نامه, February 1405, Pages 288-294 PDF (356.71 K) | ||
| Document Type: مقاله پژوهشی | ||
| DOI: 10.48311/fsct.2026.119061.83042 | ||
| Authors | ||
| Duha Ali Jasim* 1; Fouad Abbas Salman2 | ||
| 1حصارک بالا بلوار ناصر بخت شهرک شهرداری دوم غربیDepartment of Horticulture and Landscape Engineering, College of Agriculture, University of Kufa, Iraq | ||
| 2Department of Horticulture and Landscape Engineering, College of Agriculture, University of Kufa, Iraq | ||
| Abstract | ||
| This study investigated the synergistic effects of foliar-applied suspended phosphorus (SP) and humic acid (HA) on the yield and nutritional quality of cowpea (Vigna unguiculata L. cv. Ramshorn). A factorial experiment arranged in a randomized complete block design (RCBD) with three replicates was conducted. Treatments consisted of four SP concentrations (0, 3, 6, and 9 g L⁻¹) and three HA concentrations (0, 2, and 4mL L⁻¹). Data were analyzed using GenStat software, with means separated by Duncan’s multiple range test at p≤ 0.05. Results demonstrated that SP fertilization significantly enhanced the number of pods and total pod yield. HA application markedly improved pod nitrogen and protein content, alongside increasing pod length and seeds per pod. A significant interaction was observed between SP and HA. The combined treatment of 9 g L⁻¹ SP and 4 mL L⁻¹ HA proved optimal, producing the highest values for key agronomic and quality parameters: pod number (22.00 plant⁻¹), seeds per pod (10.00), pod length (18.16 cm), total yield (7.087 t ha⁻¹), pod nitrogen (3.33%), and pod protein content (20.86%). These findings highlight the efficacy of combined SP and HA foliar application as a sustainable strategy to concurrently boost the productivity and nutritional value of cowpea grains. | ||
| Keywords | ||
| Suspended phosphorus; liquid organic fertilizer; cowpea plant | ||
| References | ||
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