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Objective: Considering the abundant use of chemical fertilizers in agriculture and their detriments to the environment, it is necessary to consider alternatives to prevent possible damage. Methods: A completely randomized factorial experiment with four replications was conducted in the Nur country to investigate the imapct of nitroxin and vermicompost on the qualitative and functional characteristics of Blackberry. The first factor was the percentage of vermicompost at five levels (0, 10, 20, 30 and 40% by volume) and the second factor consisted of inoculation and lack of inoculation with nitroxin (Ni). Results: The results demonstrated that the highest fruit weight, number of fruits, and yield were observed at 20% vermicompost. Maximum fruit length (1.62 cm) was obtained with 10% vermicompost and nitroxin inoculation. In analyzing the biochemical traits, the highest soluble solids and taste index were observed in the 10% vermicompost treatment. The largest amount of anthocyanin was obtained in the 20 and 30% vermicompost treatments at 551 and 563 (mg/L fruit juice), respectively. The application of nitroxin along with 30% vermicompost yielded the highest amount of vitamin C among all treatments. Conclusion: The application of vermicompost at 20 to 30% levels had the best impact on the quantitative and qualitative traits of Blackberry, and in cases where high amounts of vermicompost exerted a negative effect on some traits, nitroxin was able to reduce this effect and enhance certain traits. In this assay, the application of vermicompost at 20-30% along with nitroxin demonstrated the best impacts on blackberry traits. [ABSTRACT FROM AUTHOR]