PurposePlant species are integral to the Earth's ecosystem, yet their health is frequently jeopardized by salinity. Therefore, it is crucial to prioritize effective strategies for mitigating the harmful effects of salinity. Salinity poses a formidable challenge to agriculture, contributing to the advancement of desertification and imposing limitations on crop yield. Biochar's positive influence extends to soil characteristics, fostering crop growth. The current study was aimed to investigate how do salicylic acid and biochar individually and synergistically influence the salinity stress tolerance mechanisms in Mungbean (Vigna radiata L).MethodA greenhouse pot experiment at the University of Peshawar used a completely randomized design with eight treatments, including 50mM and 100mM salinity levels, replicated five times. Biochar (3% by weight) and Salicylic Acid (2mM) were applied thrice.ResultsAccording to the results, scanning electron microscopy micrographs revealed biochar components distinguished by notable size and numerous pores, accompanied by various cracks. From an agronomic perspective, the plants exhibited significant resistance to induced salt stress when subjected to the application of salicylic acid (SA) and biochar, both individually and in combination. The highest significant value of ascorbate peroxidase (APOX), malondialdehyde (MDA), and peroxidase (POD) was recorded in treatment of salt stress (50mM) + Salicylic Acid (2mM) + Biochar for both varieties, which shows that biochar and SA (Salicylic Acid) mitigate the harmful effect of salt stress.ConclusionsOur study demonstrates that biochar can be practically implemented as an eco-friendly and cost-effective soil amendment, offering farmers a sustainable solution to enhance mung bean productivity in salt-affected soils through improved growth, yield, and stress tolerance mechanisms, which can be readily adopted in both small-scale and commercial farming systems.