Features of alluvial soil ,red and …

lluvial soil 
1. are the soil that are very fertile and ideal crop for the production of rice.
2.they have high content of humus
3.they are porous of its loamy nature.
4.found in large proportion in indo gangetic plain.
5.are formed from sediments from rivers.
Black soil
1. it contains large amount of clay and holds water.
2.rich in minerals like lime,potash,carbonate and potassium.
3.developes deep crack in hot seasons.
4.found in valleys of maharashtra,mp,chattisgarh.
5.also called regur soil and ideal for growing cotton.

Forest soil
1.as by the name these soils are found in forest and nearby areas.
2.formed by decompositions of leaves and dead remains.
3.very fertile but the fertility may decrease by increasing height as the temp decreases and microbes may die.
4.nice capacity to absorb moisture.
5.useful for tea plantations.

laterite soil.
1.it is naturally infertile.
2.latter means brick 
3.by adding manure and fertilizer it can be used for growing tea.coffee,chico hona.
4.found in karanatka,andhra pravesh etc.
5.low humus content .

red and yellow soil.
1.formed due diffusion of iron in these soil makes it red.
2.high iron content but has less fertility
3.when red soil decomposes it converts to yellow soil .
4.it happens deep inside due to pressures. 
5.microbes die due to high temperature

arid soil
1.infertile.
2.less water content.
3.no microbes due to high temperature.
4.found in rajasthan etc