ABSTRACT

Potassium [K] is an essential element for plants after nitrogen and phosphorus elements. It is playing an important role in the development, plant growth and such as -nutrient transportation, enzymes activities, maintaining turgor and mainly protect the plants from disease and insects. The availability of potassium is developed the productivity of paddy or grain. It is main factor but unfortunately 90 to 98% of soil is potassium bearing so that plant cannot uptake the potassium from soil. Although some micro-organism plays an important key role in potassium cycle. Potassium solubilized bacteria were isolates on modified Aleksandrov media that contain Mica powder which is use as a potassium source. The newly developed plat assay is based on improved halo- zone which is clearly visualized to add an acid-base indicator dye bromothymol blue [BTB] on agar plate. KSB micro-organisms produce acid by mica hence zone is formed. K solubilizing zone is showed after incubation for 5 to 7 days at 30?C. Therefore this newly protocol for assay of KSB was time saving and more sensitive. The use of agricultural microorganisms as a bioinoculant is a particularly important practice and a growing need as well. This chapter focuses on a liquid biofertilizer formulations. The present scenario of liquid inoculants and their benefits. Keywords: Potassium solubilizing Bacteria, Cell protectants, biofertilizer, liquid formulation
Publication date: 01/03/21

https://ijbpas.com/pdf/2021/April/MS_IJBPAS_2021_APRIL_SPCL_1013.pdf

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https://doi.org/10.31032/IJBPAS/2021/10.4.1013