Here is your required details

Description Alluvial soil is one of the best soils, requiring the least water due to its high porosity. The consistency of alluvial soil ranges from drift sand and rich, loamy soil to silt clays.
Crops grown Rice, sugarcane, wheat, vegetables, and fruits
Conservation method(s) Contour farming
Strip cropping
Cover cropping
Reduced tillage
Terracing

Click this link for further details about alluvial soil