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Abstract
EF ECT O· .BIO RTILlZERS APPH ”ATIO ON
THE PRODUCTIVITY OF ,7GELLA SATnA
LTIV. TID IN DE ERT . NDY OILS .I’I’D
:IF N YO’ PROD’ .D S .D A”.
01\, P: THOGEl I Ml ROORG II’M ,
Til present udy wa carried oul in a private farm at E1-
Sheikh Zow yed Nonh iaai governcrate, EgJrpf dlllin the two
uccessiv seasons, 2001 _002 and 20{l212003 to evaluat the
eff”cl of inoculation with th” most effici.•u.•t. strains of
A:OlObaCN’1’ c}WOOCOCCIII11and phosphate dis olving bacteria
(Bacillus r.llegalcl’ill71:l Val’. pnospnaticlfm) in presence of different
levels of inor < uic nitrogen fertilizer on the growth yield and
antimicrobia I a tivity of seed oil of ’igella sat iva L. (black
cumin),
Til effect of local Nl-fixing bacteria namely Azotaba ter
chrooooooum and phosphate dissolving bacteria namely Bacillus
megaterium as a biofextiLi’Zer on tlle growth and yield f
igelln sativa} wa studied in field experiments.
fierobiologieal parameters changes (total microbial count >
azotebacrers and phosphate dissolving bacteria den ities and
dehydrogenase a tivily were increased by inoculation with it
mixture of Azotobacter chroococcmn and B. megaterium under
suppleruentarion wirh full Or half dose of inorganic N fertilizers
during all plant growth rages, Obtained re ult also showed that
vegetative O\\’Ib of igelln sativa Wall mo rly timulated When
inoculated with a mixture of Nr fixer’S and P-dis olving
bacteria Also, mocnlation improved the yield aud yield
omp neut of the tested plants and consequently increased oil
yield and oil COil tiruent to iznificaur e .rent nuder drip
irrigation,
MQI over effect of black cumin eed oil (N. $ntiva) for
autimic obial etfeerivenes agai t different pathogenic
microorgani ms was tudie L Tile e pathogenes comprised three