Ranagalage, A., Jayakody, T., & Wathugala, D. (2014). Allelopathic potential of rice residues of selected rice varieties (Oryza sativa L.) against Echinochloa crus-galli. Journal of Tropical Forestry and Environment, 4(2). https://doi.org/10.31357/jtfe.v4i2.1848