alexa Role of Phosphate Solubilizing Microorganisms in Sustainable Agriculture - A Review
Chemical Engineering

Chemical Engineering

Journal of Advanced Chemical Engineering

Author(s): Mohammad Saghir Khan, Almas Zaidi, Parvaze A Wani

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Compared with the other major nutrients, phosphorus is by far the least mobile and available to plants in most soil conditions. Although, phosphorus is abundant in soils in both organic and inorganic forms, it is frequently a major or even the prime limiting factor for plant growth. The bioavailability of soil inorganic phosphorus in the rhizosphere varies considerably with plant species, nutritional status of soil and ambient soil conditions. To circumvent the phosphorus deficiency, phosphate solubilizing microorganisms (PSM) could play an important role in supplying phosphate to plants in a more environment friendly and sustainable manner. The solubilization of phosphatic compounds by naturally abundant PSM is very common under in vitro conditions; the performance of PSM in situ has been contradictory. The variability in the performance has thus, greatly hampered the large-scale application of PSM(s) in sustainable agriculture. Numerous reasons have been suggested for this, but none of them have been conclusively investigated. Despite the variations in the performance, the PSM(s) are widely applied in agronomic practices in order to augment the productivity of crops while maintaining the health of soils. This review presents the results of studies on the utilization of PSM(s) for direct application in agriculture under a wide range of agro-ecological conditions with a view to fostering sustainable agricultural intensification in developing countries of the tropics and subtropics.

This article was published in Sustainable Agriculture and referenced in Journal of Advanced Chemical Engineering

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