Formulations of Plant Growth- Promoting Microbes for Field Applications
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Subramaniam Gopalakrishnan, Sathya Arumugam, Rajendran Vijayabharathi, Srinivas Vadlamudi. (30/11/2016). Formulations of Plant Growth- Promoting Microbes for Field Applications, in "Microbial Inoculants in Sustainable Agricultural Productivity: Functional Applications". Berlin, Germany: Springer.
Abstract
Development of a plant growth-promoting (PGP) microbe needs several
steps starting with isolation of a pure culture, screening of its PGP or
antagonistic traits by means of different effi cacy bioassays performed
in vitro, in vivo or in trials under greenhouse and/or fi eld conditions. In
order to maximize the potential of an effi cient PGP microbe, it is essential
to optimize mass multiplication protocols that promote product quality
and quantity and a product formulation that enhances bioactivity, preserves
shelf life and aids product delivery. Selection of formulation is very
crucial as it can determine the success or failure of a PGP microbe. A good
carrier material should be able to deliver the right number of viable cells
in good physiological conditions, easy to use and economically affordable
by the farmers. Several carrier materials have been used in formulation
that include peat, talc, charcoal, cellulose powder, farm yard manure, vermicompost
and compost, lignite, bagasse and press mud. Each formulation
has its advantages and disadvantages but the peat based carrier
material is widely used in different part of the world. This chapter gives a
comprehensive analysis of different formulations and the quality of inoculants
available in the market, with a case study conducted in fi ve-states of
India.
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Gopalakrishnan, Subramaniam https://orcid.org/0000-0003-4053-7016