ABSTRACT

For plant growth and development, potassium (K) is important. It is involved in plant cellular osmotic pressure change and compound transport in plants. It promotes enzyme activation, nitrogen utilization, and sugar and protein synthesis.It also improves photosynthesis in plants. K deficiency causes yellowing of the leaf edges in plants, giving them a burnt look. Slow growth and incomplete root development may also be caused by it. Supplementation of soil potassium depends heavily on the use of chemical fertilizer, which has a major negative effect on the environment. Plants are only able to get k through the soil. In India, the detrimental use of chemical fertilizers has a significant adverse effect on the economy and environmental sustainability.The need to return to nature or sustainable agents that encourage evergreen agriculture is growing. Among these natural bio-agents, one such alternative is considered to be potassium solubilizing micro-organisms which solubilize fixed forms of potassium in soil via different mechanisms, including acidolysis, chelation, exchange reactions, complexity and organic acid productionKSM represents an immense opportunity for changing the challenges of the agricultural sector. In making potassium available to plants, potassium solubilizing microorganisms play a vital role in that solubilize potassium from insoluble forms such as feldspar, mica through the processing of organic acids and various enzymes. This review workcovers the work done on various potassium solubilizing microorganisms and their effects on plant’s growth. Keywords: Bio-fertilizer, potassium solubilization, plant and bacteria interaction, PGPRs, potassium bearing minerals
Publication date: 01/01/2022

https://ijbpas.com/pdf/2022/January/MS_IJBPAS_2022_5829.pdf

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https://doi.org/10.31032/IJBPAS/2022/11.1.5829