Response of aromatic Rosa grass to different proportions of fly ash and vermicompost

The environmental and health concerns connected with the fly ash dumpsite could be avoided by using non-food crops to phytostabilize the site, keeping pollutants from moving and providing extra economic benefits. Fly ash amendments with nutrient-rich vermicompost have the potential to improve soil quality and availability, leading to increased crop productivity. Given the crop 's importance and knowledge of fly ash and vermicomposting, this study aims to enhance commercial rosa grass development while avoiding using chemical fertilizers and low-cost inputs like fly ash and vermicompost. As a result, the current research is intended to identify the best fly ash (FA) and vermicompost (VC) ratios to enhance the commercial development of palmarosa while lowering the use of chemical fertilizers. We evaluated the effects of various fly ash and vermicompost levels on the growth, production, and quality of palmarosa essential oil to find the optimal fly ash dose. The experiment was set up with three replications with a total plot size of 3.8 x 3.8 m (a net plot area of 3.6 x 3.6 m). A space of 60 x 60 cm was used between the rows and plants for all treatments. Table 1 contains treatment information. Porosity varied significantly, with 100 % VC having much higher porosity (52.8 %) than the other treatments. In all five harvests, T3 (20 % FA + 80 % VC) produced significantly more biomass than the treatments T1 and T2 (first harvest = 8.2, second harvest = 9.0, third harvest = 9.4, fourth harvest = 8.9, and fifth harvest = 8.4 t/ha, respectively). Similarly, 20 % FA + 80 % VC produced essential oil yields comparable to T3 (257.6 kg/ha) and much greater than the other treatments (T2, 266.9 kg/ha). T2 and T3, on the other hand, exhibited higher gross returns, net returns, and B: C ratios. In a nutshell, the study provides an amazing novelty or inventory of potential future advantages and shows how fly ash combined with vermicompost can improve the biomass and essential oil production of Rosa grass. T3 biomass yields were significantly greater than T1 and T2 (80 % VC and 20 % fly ash) in all five of the harvests: 8.2 t/ha, 9.0 t/ha, 9.4 t/ha, 8.9 t/ha, and 8.4 t/ha, respectively. T3 (20 % FA + 80 % VC), produced more essential oil than the other treatments (T2, 266.9 kg/ha).