ACTIVITY OF Azotobacter AND Azospirillum IN THE RHIZOSPHERE OF ONION PLANT

EFFICACY OF BIOFERTILIZERS ON FUSILADE HERBICIDE ACTIVITY, GROWTH AND PRODUCTIVITY OF BROAD BEAN (Vicia faba).

PURIFICATION, CHARACTERIZATION AND ACTIVE GROUPS OF BACTERIAL CHOLESTEROL OXIDASE.

FUNGAL LOAD AND MYCOTOXINOGENESIS OF SOME EGYPTIAN MEDICINAL PLANTS