This study tested growing oyster mushrooms on a special grass called Cenchrus fungigraminus that was heat-treated to remove harmful organisms. Three types of oyster mushrooms were grown, and researchers measured the enzymes they produced and the nutrition in the harvested mushrooms. The oyster mushroom species Pleurotus ostreatus grew fastest and produced the best yields, and the grass substrate proved to be an effective and affordable choice for small-scale mushroom farming.