Question

what are the advantages and disadvantages of clayey soil

Answer 1

One of the disadvantages of clay, is that it stays wet long after rain. ... If this happens, the soil is clay. I've been careful to use a board when I do need to step onto the beds, as claybecomes compacted very easily when wet. When the soil does finally dry out, the surface becomes like concrete, and cracks.

Answer 2

clay soil is used are so many in that
some are
Clay is a finely-grained natural rock or soilmaterial that combines one or more clay minerals with possible traces of quartz (SiO2), metal oxides (Al2O3 , MgO etc.) and organic matter. Geologic clay deposits are mostly composed of phyllosilicate mineralscontaining variable amounts of water trapped in the mineral structure. Clays are plastic due to particle size and geometry as well as water content, and become hard, brittle and non–plastic upon drying or firing.[1][2][3] Depending on the soil's content in which it is found, clay can appear in various colours from white to dull grey or brown to deep orange-red.