Salinity stress adversely affects root nodulation symbiotic relationships, and ultimately the nitrogen fixation capacity and the growth and yield of leguminous plants. Improving growth and biological nitrogen fixation of leguminous plants grown on salt–affected soils are considered to be a striking challenge. Most of the findings reveal that co–inoculation of legumes with salt–tolerant non–rhizobial endophytic/rhizosphere bacteria and rhizobial bacteria is a sustainable solution for boosting nitrogen fixation and the productivity of leguminous plants grown on salt–affected soils compared to those formed by a single rhizobial bacterium. In separate studies silicon was also found to boost growth, nodulation and nitrogen fixation in leguminous plants by various mechanisms under non–saline and saline conditions. In this paper we first review the implication of endophytic/rhizosphere non–rhizobial nodule bacteria in the plant's resistance to salinity stress. Next we review the implication of silicon biogeochemistry in plant's response to salinity stress. Last, we propose that non–rhizobial bacteria mediate the response to salinity together with silicon in mitigating salinity stress. This review mostly focuses on the important role of silicon and beneficial non–rhizobial endophytic bacteria during the nodule formation process, accentuating their importance to legume growth promotion under salinity stress. Based on our literature review, non–rhizobial bacteria in combination with silicon were often more effective at improving nodulation and nitrogen fixation in salinity–stressed legumes than solely inoculated non–rhizobial bacteria. We propose the combined use of non–rhizobial helper nodule bacteria and silicon together can be a powerful and sustainable strategy to nodulation and nitrogen fixation in legumes under salinity–stress conditions, and hence research on the dual use of silicon and non–rhizobial bacteria in legumes under salinity stress can be an effective strategy. A better grasp of the interactions between plant silicon and non–rhizobial nodule bacteria and plant responses to salinity stress will help implement more effective fertilizer practices under saline conditions.

盐分胁迫对根瘤的共生关系产生不利影响，最终影响到固氮能力以及豆科植物的生长和产量。改善在受盐影响的土壤上生长的豆科植物的生长和生物固氮能力是一项艰巨的挑战。大多数发现表明，将豆科植物与耐盐的非根瘤菌内生/根际细菌和根瘤菌共同接种是一种可持续的解决方案，与盐胁迫土壤上种植的豆科植物相比，该方法可以提高固氮和豆科植物的生产力。单个根瘤菌。在单独的研究中，还发现硅可以通过非盐和盐条件下的各种机制来促进豆科植物的生长，结瘤和固氮。在本文中，我们首先回顾内生/根际非根瘤性结节细菌对植物抗盐胁迫的影响。接下来，我们回顾了硅生物地球化学在植物对盐分胁迫响应中的意义。最后，我们建议非根际细菌与硅一起介导对盐分的响应，以减轻盐分胁迫。这篇综述主要侧重于硅和有益的非根瘤菌内生细菌在结节形成过程中的重要作用，强调了它们对盐分胁迫下促进豆类生长的重要性。根据我们的文献综述，与单独接种的非根瘤菌相比，非根瘤菌与硅的结合通常在盐渍胁迫下的豆科植物中对结瘤和固氮的改善更为有效。我们建议在盐分胁迫条件下，非根瘤菌辅助结节细菌和硅的组合使用是豆科植物中结瘤和固氮的有效且可持续的策略，因此，对硅和非根瘤菌在细菌中的双重使用进行了研究。盐分胁迫下的豆类可能是有效的策略。更好地掌握植物硅与非根瘤菌之间的相互作用以及植物对盐分胁迫的反应，将有助于在盐分条件下实施更有效的肥料操作。因此，研究盐分胁迫下豆类中硅和非根瘤菌的双重使用是一种有效的策略。更好地掌握植物硅与非根瘤菌之间的相互作用以及植物对盐分胁迫的反应，将有助于在盐分条件下实施更有效的肥料操作。因此，研究盐分胁迫下豆类中硅和非根瘤菌的双重使用是一种有效的策略。更好地掌握植物硅与非根瘤菌之间的相互作用以及植物对盐分胁迫的反应，将有助于在盐分条件下实施更有效的肥料操作。