These results are in agreement with those obtained by
Mahendran et al. (1996) they reported that inoculation with
Azospirillum sp and B. megaterium in combination, significantly
increased the N, P, and dry matter contents and NPK
uptake by different plant parts of potato. Also, Farzana and
Radizah (2005) determined the influence of rhizobacterial isolates
on the response of sweet potato plant growth. A total of
five rhizobacterial isolates capable of producing IAA were
used. Four of the isolates were collected from sweet potato rhizosphere