It was found that using Salvinia molesta vermicompost at a rate of 13.2 t/ha or Salvinia vermicompost with an additional 45:13:62 kg N:P:K/ha resulted in significantly improved growth parameters such as plant height (89.94 cm), number of tillers/m2 (520.24), and total dry matter production (77.52 g/plant) at harvest. Additionally, yield parameters like productive tillers/m2 (499.95), panicle length (21.86 cm), grain yield (5.23 t/ha), straw yield (6.66 t/ha), harvest index (0.44), and low chaff percentage were also positively impacted. The next best treatment was the application of 9.9 t/ha of Salvinia vermicompost along with 45:13:62 kg N:P:K/ha. Furthermore, significantly higher levels of available N (389.65   kg/ha) and K (225.42 kg/ha) in the soil were observed with the Salvinia vermicompost application. However, the application of 3.3 t/ha of Salvinia vermicompost with 45:13:62 kg N:P:K/ha resulted in the highest benefit-cost ratio of 2.50