Pot experiments were conducted to study the effects of different irrigation water qualities on the partial physical and chemical properties of alfalfa soil.The results indicated that compared with fresh water irrigation(Q),sewage(W) and reclaimed water(Z) significant decreased soil pH and increased soil EC.At the second and third clipping,W and Z irrigation increased soil inorganic nitrogen contents by 63.59%,35.02% and 82.18%,30.72% compared with Q respectively.Compared with Q,W increased soil Cd contents ...