Abstract

Author:
Olasan Olalekan Joseph, Aguoru Celestine, Imbur Msurshima, Ani Ndidiamaka, Edinoh Daniel Ojomugbo

Doi: 10.26480/sfna.01.2025.24.29

This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

This study examined the effects of magnesium oxide nanoparticles (MgO-NPs) on soybean (Glycine max) growth and yield using a randomized design with five replicates. Treatments included Nano-20, Nano-40, Nano-60, Nano-80, Nano-100, salt, and NPK fertilizer. Results showed that salt treatment produced the tallest plants (24.2 cm) compared to the control (21.4 cm). Nano-80 had the highest number of leaves (21.2), while Nano-100 had the longest leaves (5.11 cm). Salt and Nano-40 had the most branches (9.8), and salt and NPK fertilizer had the highest stem diameter (0.69 cm and 0.62 cm, respectively). Phenological analysis indicated that Nano-40 and Nano-100 significantly influenced flowering, with Nano-40 producing the most flowers (5.90) in 57 days, while Nano-100 had 5.80 flowers in 54.5 days. Growth yield results showed that Nano-40 and Nano-100 had the highest pod numbers (12.00 and 11.30, respectively). Nano-60 had the longest pods (4.66 cm), while Nano-20 followed with 4.42 cm. Nano-20, Nano-40, and Nano-80 had similar seed numbers per pod (3.00). Nano-60 recorded the highest total pod weight (2.92 g), followed by Nano-80 (2.82 g). NPK fertilizer and Nano-60 had the highest total seed weights (2.33 g and 2.21 g, respectively). These findings suggest that nanoparticle treatments significantly enhance soybean growth, flowering, and yield, demonstrating their potential for optimizing crop management and advancing sustainable agriculture.