Laterite Soil
How is it formed?
Define Leaching.
Two types of laterite soils
Characteristics of laterite soil
Advantages and Disadvantages
Two crops suitable for cultivation
Two states where found
Answers
Answer:
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Explanation:
Laterite Soil
Laterite is a soil and rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas.
Formation of laterite soil
- Laterite soil is formed under conditions of heavy rainfall with alternate wet and dry periods, and high temperature which leads to leaching of soil, leaving only oxides of aluminium and iron.
2. The lacks fertility because of the lower base-exchanging capacity and a lower content of phosphorus, nitrogen, and potassium.
3.Yet, fitting irrigation and proper use of fertilizers make it suitable for growing crops, like coffee, tea, rubber, coconut, cinchona, etc.
4.The soil is one of the important sources for building material, because it can be efficiently cut with a spade but hardens like iron when exposed to air.
Leaching
leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.
Types
Hematite and goethite
Characteristics
1. Laterite soil develops in areas with high temperature and heavy rainfall.
2. Humus content of the soil is low because most of the micro organisms, particularly the decomposer like bacteria, get destroyed due to high temperature.
3. Laterite soils are suitable for cultivation with adequate doses of manures and fertilizers. -
Advantages
Agriculture
Building Blocks
Road Building
Ores
Bauxite
Disadvantages
(i) They contain high percentage of acidity.
(ii) It is generally coarse in texture and cannot retain moisture.
Crops Suitalble
Tea, Coffe and cashew
Location
Andhra Pradesh ,Karnataka,Bihar,Haryana ,Punjab
Answer:
Laterite is formed when slate rock undergoes metamorphosis due to high temperature and pressure.
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