Utilization of selected materials for development of granular formulations of microbial consortium of agriculturally important microorganisms (AIM)
Loading...
Date
2011-11-28
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Agricultural Sciences, Bengaluru
Abstract
An investigation was carried out to study the effect of granular inoculant
formulations of individual, dual inoculants and microbial consortium in eight selected
substrates on survival, degradation, release of microorganisms and growth and
development of finger millet plant (Eleusine coracana). Survival of Azotobacter
chroococcum, Bacillus megaterium and Pseudomonas fluorescens individually, A.
chroococcum + B. megaterium, A. chroococcum + P. fluorescens and B. megaterium +
P. fluorescens dual inoculants and microbial consortium A. chroococcum + B.
megaterium + P. fluorescens was highest in soybean granular inoculant formulations.
Wheat, wheat + semolina, soybean and soybean + semolina granular formulations
showed maximum degradation in presence and absence of tomato (Lycopersicon
esculentum) and finger millet plant. Faster degradation was observed when granules
were incubated in presence of finger millet plant in soil compared to tomato plant and
slow degradation was observed in absence of plant. Maximum release of microbial
consortium was observed in soybean granular inoculant formulations in presence and
absence of tomato and finger millet plant. Green house experiments revealed maximum
number of leaves, plant height, chlorophyll content, shoot and root nitrogen
concentration, shoot and root phosphorus concentration, root dry weight, shoot dry
weight and total biomass in seeds inoculated with microbial consortium of A.
chroococcum + B. megaterium + P. fluorescens which was statistically on par with A.
chroococcum + B. megaterium when compared with main effect of cultures. Among all
three selected substrate based granular inoculant formulations, rice granular inoculant
formulations performed better than ragi granular inoculant formulations and wheat
granular inoculant formulations. The presence of nutrients showed superior results than
the absence of nutrients.
Description
Keywords
application methods, bacteria, millets, planting, granules, biological development, wheats, nutrients, processed plant products, biological phenomena