@article{CRSIJ26000152,
                  author = {Atanda Tinuade Toyin , Olaniyi Joel Oyekunle},
                  title = {Effects Of Tillage Methods And Phosphorus Fertilizer Rates On The Growth, Yield And Nutritional Qualities Of Onion (Allium Cepa L.) In Ogbomoso South Western Nigeria.},
                  journal = {Cosmo Research and Science International Journal},
                  year = {2025},
                  volume = {1},
                  number = {6},
                  pages = {169-185},
                  issn = {3108-1584},
                  url = {https://cosmorsij.com/published/CRSIJ26000152.pdf},
                  abstract = {Field experiment was conducted at Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Southwest Nigeria, to investigate the effects of tillage methods and phosphorus fertilizer rates on the growth, yield and Nutritional Qualities of onion (Allium cepa L.). The experiment was conducted using a split-plot arrangement in a randomized complete block design with three replicates. Tillage methods (plough, plough + bed, and plough + ridging) constituted the main plots, while phosphorus rates (0, 15, 30, 45, and 60 kg P₂O₅ ha⁻¹) formed the subplots. A recommended combined application of N and K fertilizers (60Kg N/ha x 120Kg K2O/ha) inform of Urea and Muriate of Potash (MOP) was applied at 2 weeks after transplanting. Results showed that tillage methods significantly influenced early growth parameters, with plough + ridging producing higher plant height and leaf number at early stages. Phosphorus application significantly improved growth and yield, with 30 kg P₂O₅ ha⁻¹ consistently producing optimal plant height, leaf number, bulb diameter, and bulb weight. Interaction effects revealed that plough + ridging combined with 30 kg P₂O₅ ha⁻¹ produced superior growth and yield performance. Nutritional analysis indicated that both tillage and phosphorus significantly affected mineral composition, proximate contents, and phytonutrients, with highest values generally obtained under plough + ridging combined with 15 kg P₂O₅ ha⁻¹.The study concludes that plough + ridging integrated with 30 kg P₂O₅ ha⁻¹ optimizes onion growth and yield, while lower phosphorus rates (15 kg P₂O₅ ha⁻¹) enhance nutritional quality.},
                  keywords = {Onion, Tillage methods, Phosphorus fertilizer, Onion yield, Mineral elements, Proximate and Phytonutrient compositions, LAUTECH},
                  month = {May}
        }