Rumana Yeasmin, & Eiji Nishihara. (2013). Activated Carbon and Phosphorus Application Influences the Growth of Continuously Replanted Asparagus (Asparagus Officinalis L.). Global Journal of Science Frontier Research, 13(B5), 1–7. Retrieved from https://journalofscience.org/index.php/GJSFR/article/view/902