2025/04/07 by Alemu Hailu, Hailu, Alemu, Zerihun Jalata +3
Agricultural and Biological Sciences · #Agronomic practices #Garlic and Onion Studies #Intra-row spacing #Irrigation Practices and Water Management #Nitrogen Fertilizer #Quality #Shallot Cultivation and Analysis
paper · doi:10.20372/afnr.v3i3.1523
openalex publication_date 2025/04/07 · openalex created_date 2026/01/01 · openalex updated_date 2026/07/01
The leafy vegetable shallot (Allium ascalonium L.) is grown in many tropical locations, including Ethiopia. Due to insufficient soil fertility, a lack of better planting materials, improper plant density, and a lack of agronomy research, the study area's shallot yield is low. Thus, this experiment was carried out during the 2021–2022 off-season in Mulo District, Oromia Regional State, Ethiopia. The primary goal of this study was to assess intra-row spacing and nitrogen fertilizer rates affected shallot growth, yield, and quality. Four intra-row spacings (5, 10, 15, and 20 cm) and four nitrogen fertilizer rates (0, 50, 100, and 150 kg N ha⁻¹) were set up in a 4 × 4 factorial experiment utilizing a randomized full block design with three replications. Data were collected on yield components, yield, and quality parameters of shallots. Both the main effects and their interaction exhibited a substantial (p < 0.05) impact on yield and quality parameters, according to analysis of variance. The maximum marketable and total bulb yields were obtained from the interaction of 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacing, while the lowest yields 16.79tha-1 were recorded from the zero kg N and at the narrowest spacing. Therefore, the use of 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacing can be recommended for improved shallot production under the conditions of the study area. However, further studies across different seasons would be to validate these findings.