ABSTRACT

Nanoparticles particularly in the agricultural sector have a positive impact on environmental sustainability and existence of microbial population. The uncontrolled deposition of metal-based nanoparticles in the soil had led to toxicity of the soil which would ultimately result in the bioremediation of organic as well as inorganic contaminants in the soil. The soil physicochemical properties are affected to a large extent by the synthesized nanoparticles. Various formulations of metallic NPs such as nanofertilizers, nanoherbicides, etc. have been explored for their role in plant growth promotion till date. The positive and negative effects imparted by the nanoparticles on the natural ecosystem also are well documented. Future studies should highlight areas on utilization of biogenic nanoparticles and work on immobilization of soil contaminants. Furthermore, the positive effects of microbial nanoproducts in the bioremediation of heavy metals and improvement of soil health status can serve as a model to fully maximize their agricultural use in boosting soil fertility, crop productivity and other ecological facilities.