The salinization of arable land is increasing steadily in many parts of the world. Excessive concentration of soluble salts (salinity) in soils, or irrigation water adversely affects growth and survival of plants. This problem exaggerates further in arid and semiarid areas due to low precipitation and high evaporation rates. Poor management practices and policies for using rivers water for irrigation of agriculture crops often induce secondary salinization of soils. weiterlesen