Water quality impacts soil moisture retention, affecting agricultural productivity and water management.
The researchers studied how different water qualities affect the ability of clay, clay loam, and silt loam soils in Maharashtra to retain moisture. They tested 24 combinations of sodium adsorption ratio (SAR) and total electrolyte concentration (TEC) and measured water retention at various suctions. They found that SAR had a bigger impact than TEC on water retention, with higher SAR leading to more available water and less drainable water. The type of soil also played a role, with clay and clay loam being more affected by SAR than silt loam. Overall, water quality changes influenced the soil's ability to hold water, especially near saturation and at higher suctions.