This study aims to determine the effect of nut grass tubers extract (Cyperus rotundus L.) and cogon grass rhizome extract (Imperata cylindrica L. Raeuschel) on the growth of rice (Oryza sativa L.) plants. The research was conducted in the greenhouse of the Faculty of Agriculture, Sriwijaya University, located in North Indralaya , Ogan Ilir Regency, South Sumatra. The study was conducted from Se…