Evaluating the role of bentonite embedment in controlling infiltration and improve root zone water distribution in coarse soil.

An extensive irrigation system is being developed in Greater Thal Canal area to meet food demand of growing population. In Greater Thal Canal area soils are predominately coarse which results in higher deep percolation losses than those occurring in other cultivated land. Surface irrigation methods are normally used. Infiltration may be described by the Kostiakov Equation. Soil amendments such as bentonite could be used to reduce the water...