Abstract

The excessive use of chemicals in agricultural production gives rise to various issues such as unanticipated environmental impacts, soil biological degradation as well as water contamination. This in many instances has led to eutrophication as well as human health hazards. The concern has raised the question on the safety of food products obtained from this conventional method. It has, therefore, become imperative to adopt biological fertilization strategy that may minimize the use of these inputs. Exploiting the relationships among plants and rhizospheric soil microbes is a rational option. Such interactions are the major factors that determine the health of a plant, plants’ yield, and fertility of the soil. The Plant Growth Promoting Regulators ) are being used as bio-inoculants for the provision of nutrients, plant growth promotion and to combat plant diseases. The PGPR includes 72 bacterial genera including Agrobacterium, Azotobacter, Azospirillum, Bacillus, Burkholderia, Erwinia, Flavobacterium, Micrococcous, Pseudomonas, Serratia, etc. With the use of these genera, the chemical inputs, and agrochemicals are bound to be reduced in order to sustain benefits to human health. The application of effective PGPR in inoculant technology, therefore, is considered as a vital approach for sustainable soil management and solving environmental issues.