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Strategic tillage(ST)was implemented to reduce weed infestation and stubble borne diseases in a wheat-fallow monoculture(Triticum aestivum L.cv.Timgalen)under 44 years of no-tillage(NT)and conventional tillage(CT)managements in a Vertisol from Queensland,Australia.The longterm experiment included a factorial combination(CT or NT x crop residue retained or burnt)with four replications.