The atmospheric electric field serves as a critical biophysical regulator for plant growth, with exogenous DC fields demonstrating dose-dependent effects on legumes. This study exposed Vigna radiata sprouts to horizontal, vertical downward, and vertical upward DC fields during germination. The study assessed how variations in electric field intensity and direction affected the growth indicators of Vigna radiata sprouts. The findings demonstrate that after 4-day DC electric field exposure, distinct effects on sprout growth were observed. Specifically, lower-intensity fields suppressed growth compared to controls, whereas higher intensities promoted developmental processes. Notably, vertical electric field application at equivalent intensities induced hypocotyl elongation and radial expansion relative to horizontally treated sprouts. A marked yield enhancement was observed under 0.15 kV/cm horizontal fields, showing a 28.4% fresh weight increase versus controls. Furthermore, nutritional analysis revealed an inverse relationship between electric field intensity and both protein content and POD (peroxidase) activity. Nevertheless, inter-group differences remained statistically non-significant, as exemplified by the modest 6% protein reduction in 0.15 kV/cm horizontal field-treated sprouts relative to controls.