“Effectiveness of Bradyrhizobium isolates on seedling growth and nitrogen content in soybean [Glycine max (L.) Merrill]”, Botanica Orientalis, vol. 4, no. 1, pp. 1–3, Aug. 2007, Accessed: Jul. 07, 2026. [Online]. Available: https://nepjol.info/index.php/BOTOR/article/view/493