: Efficay of six indigenous nonsymbiotic free living soil bacteria namely DS-1-20 (Stenotrophomonas sp Accession No. KY636360), DS-2-10 (Herbaspirillum sp Accession No. KX587468), DJ-1-22 (Burkholderia sp Accession No. KY 859855), DJ-1-3 (Burkholderia sp Accession No. KY 636359 ), TS-3-15 (Stenotrophomonas sp Accession No. KY631488 ) and AS-1-4 (Stenotrophomonas sp Accession No. KY636361 ) has evaluated in tea fields of North Bengal Tea Gardens for subsequent two years . Remarkable increase in yield ( green leave production) and plucking point compare to the control is observed. Among the six strains so far tested the DS-2-10 i.e. a bacterium of the genus Herbaspirillum sp have showed maximum response compare to the other five strains in the context of green leave production(145kg in first year and 150.87kg in second year) and plucking point (88.75 in first year and 91 in second year) which are statistically significant (P
Key words: : Indigenous, free living, biofertilser, Stenotrophomonas sp, Herbaspirillum sp, Burkholderia sp,tea pathogenic fungi, antagonistic activity.
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