Mohamed, A.A., Eweda, W.E.E., Heggo, A.M. and Hassan, E.A. (2014) Effect of dual inoculation with arbuscular mycorrhizal fungi and sulphur-oxidising bacteria on onion (Allium cepa L.) and maize (Zea mays L.) grown in sandy soil under green house conditions. Annals of Agricultural Sciences, 59, 109-118.