AZOTOBACTER AS A SOURCE OF BIOFERTILIZER: FORMULATIONS AND ITS ADVANCES Authors: Gadkari J and Shrivastav A*
ABSTRACT
Biofertilizer consists of live microorganisms that enhances plant growth and development.
They are cost-effective and eco-friendly bioinoculants that can provide nutrients to plant,
secrete certain growth promoting substances, suppress phytopathogens, reduces the biotic and
abiotic stress, detoxify the soil pollutants and improve the soil fertility. There is increased
demand for chemical fertilizers and pesticides which in turn causes hazardous effect on
environment so an alternative biofertilizers promises to be a sustainable technology.
Azotobacter is most common free living, gram negative, cyst producing, aerobic and nitrogen
fixing bacteria. It secretes indole acetic acid, cytokinins and gibberellin-like compounds. One
of the major step of biofertilizer production is formulation. In formulation, the microbial
strain is mixed with a carrier, which transfers them to target plant or soil. There are different
types of formulation depending on the form of carrier used like solid, liquid and
encapsulated. This paper reviews about the need of biofertilizer, characteristics of
Azotobacter sp., biofertilizer production process and formulations types.
Keywords: Biofertilizer, Formulation, Bioinoculant, Microorganism Publication date: 01/01/2022 https://ijbpas.com/pdf/2022/January/MS_IJBPAS_2022_5815.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2022/11.1.5815