This investigation was carried out during two successive seasons 2008 and 2009 to investigate the effect of inoculation of some growth promoting rhizobacteria (PGPR) with farm fertilization on vegetative growth, flowering and productivity characteristics of Manzanillo olive trees .The trees were grown in sandy soil under drip irrigation system in a privat orchard .PGPR treatments (Bacillus Polymyxa as Biovine inoculants and Saccharomyces cervisea as Yeast) were added to 50%or100%  farm fertilization. Biovine and yeast; with 50ml per/ tree plus orchard fertilization every fifteen days during the period from first of February until the end of fruit set were added. Results showed that the application 100% farm fertilization either with
biovine  alone or with biovine plus yeast and also with yeast resulted in the highest
shoot length in first season.100% farm fertilization with yeast delayed flowering onset
by five days comparing with other treatments. Adding Biovine to 100%farm fertilization
led to increase density of leaves, leaf area , number of flowers per inflorescences, fruit set as well as modification  of sex  ratio, yield (kg) per tree ,moisture content (%)in both seasons as compared with control. Biovine with 50% farm fertilizer increased fruit length (cm) , fruit width (cm) ,stone width (cm), stone length (cm), fruit weight (g), stone weight (g), average flesh weight and flesh/stone in both seasons , Biovine and yeast with 100% farm fertilizer increased oil percentage in dry weight, N (%),P(%) Mn (%)  and Zn (ppm) and Fe (ppm) contents in both seasons of the study. The general conclusion to be drawn from these results is that under biovine plus 100% farm fertilization, may promote the uptake of different nutrients, and may
activate different physiological processes which reflect eventually on the yield and fruit quality.