Singh, M. “Effect of Potassium on Growth and Yield of Patchouli [Pogostemon Cablin (Blanco) Benth.]”. Journal of Spices and Aromatic Crops 23, no. 1 (June 24, 2014): 76–79. Accessed September 24, 2025. https://www.updatepublishing.com/journal/index.php/josac/article/view/5096.