Colonized oat bran was thoroughly dispersed through the soil
by mixing in a cement mixer (3% weight of oat bran-based
inoculum/weight of non-sterile soil). Twenty-five-centimetre
diameterfree-drainingpolyethylenepots(50 cminheight)were
filled with 8 kg of soil. Basal doses of N (90 kg ha ?1 ) and K
(40 kg ha
?1 ) fertilizers were applied in the form of urea and
potassiumsulfate,respectively.Supplementationofphosphate
fertilizer was in the form of either SP containing 20% P (Abu
Zaabal Fertilizers and Chemical Company, Cairo, Egypt) or PRP
containing30%P.ThedosesforbothSPandRPwere40 kg ha
?1