Define the categories of Soil structure

Three broad categories of soil structure.  

These are: 

1)  Single grained, where each particle in a soil functions as an individual and is not attached to other particles.  The examples are sand and silt.

2)  Massive, has a dense structure and forms large clods on drying.  It is commonly referred to as puddled and generally constitutes C-horizon.

3)  Aggregated, is formed by aggregation of primary soil particles viz., sand, silt and clay.  The structure type is determined by their shape.  These types are described briefly in Table. The five type of structures based on the shape are spheroidal, platy, prismatic, columnar and