Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land ?

1. Salinization is the process where excessive accumulation of soluble salts and minerals occurs in the soil, often due to irrigation water containing dissolved salts evaporating from the soil surface. 2. Option (A) is incorrect: High salt concentrations in the soil are toxic to most plants, hindering water uptake by roots (due to osmotic effects) and disrupting nutrient balance. This drastically reduces, rather than increases, crop production. 3. Option (B) is correct: Some salts, particularly sodium, can disperse clay particles in the soil. This breakdown of soil structure reduces porosity and permeability, effectively making some soils impermeable or very poorly drained. This is known as sodification, often associated with salinization. 4. Option (C) is incorrect: Salinization itself doesn't directly raise the water table. Waterlogging (a high water table) combined with poor drainage can *lead* to salinization as water evaporates from the surface, but salinization is the effect, not the cause of a raised water table. 5. Option (D) is incorrect: Salinization concerns the accumulation of salts, not the filling of air spaces with water (which describes waterlogging or saturation).