Explanation:

Ans. Sodic soils

 BO 91, CO 740 and CO 453 sugarcane varieties are suitable for Sodic soils

Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization. Salts occur naturally within soils and water. Salination can be caused by natural processes such as mineral weathering or by the gradual withdrawal of an ocean.