Post-drought salinity is one of the most significant and most shared environmental stresses in the world and is one of the important factors in reducing the growth and yield of many crops and medicinal plants [1].Azomite is an inorganic mineral that contains more than 60 forms of nutrients (macro and micro elements). This material modifies and improves the soil, and the high ionic exchange capacity of this substance has resulted in some of it being used to reduce the effects of salinity stress [2].In order to investigate the effect of Azomite on reducing the effect of salinity stress in Mexican parsley, a field experiment was conducted as a factorial built on a completely randomized design in a research greenhouse of Ferdowsi University of Mashhad in 2017. The experimental treatments included the first factor of salinity stress at three levels (0, 30 and 60 mM sodium as salinity of irrigation water) and the second factor was the application of Azomite at 4 levels (0, 4, 8 and 12g/kg soil) and in three repeats.The results revealed that the interaction between salinity and Azomite was significant in all studied traits. The results of the assessment of the mean of data also indicated that the plant height, photosynthetic pigments and protein content were increased and that the electrolyte leakage, proline, malondialdehyde (MDA) and carbohydrate were soluble. Application of Azomite, expressly at 12g/kg soil, could significantly improve these traits and therefore, it could be suggested to use this material underneath salt stress conditions.

Keywords