(i) Laterite Soils are leached Soils because alternating dry and wet spells cause the soluble silica to be removed. (ii) These Soils are acidic in nature and coarse and crumbly in texture. (iii) The proportion of lime and silica is reduced when leaching takes place.

What is the properties of laterite soil?

(i) Laterite Soils are leached Soils because alternating dry and wet spells cause the soluble silica to be removed. (ii) These Soils are acidic in nature and coarse and crumbly in texture. (iii) The proportion of lime and silica is reduced when leaching takes place.

How do you identify laterite soil?

Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content.

What are the three main features of laterite soil?

The main features of the laterite soil are : 1) The colour of this soil is mostly reddish. 2) The iron composition of this soil is very high than other soils. 3) This soil lacks good amount of fertility for the harvesting purposes.

What is the composition of laterite soil?

Laterite soil is rich in aluminum and iron, formed in wet and hot tropical areas. Almost all laterites are rusty red due to the presence of iron oxides. It is prepared by the long-lasting and intensive weathering of the parent rock.

How is laterite soil formed give the main characteristics of laterite soil where are they found?

Laterite soil develops in areas with high temperature and heavy rainfall. Humus content of the soil is low because most of the micro organisms, particularly the decomposer like bacteria, get destroyed due to high temperature. Laterite soils are suitable for cultivation with adequate doses of manures and fertilizers.

What is the importance of laterite soil?

It is good for growing crops like coffee, tea, rubber, coconut, cinchona, and others due to irrigation and correct fertiliser application. Because it can be efficiently chopped with a spade yet hardens like iron when exposed to air, soil is a significant supply of building material.

What is laterite soil How is laterite soil formed?

The laterite soil is formed under conditions of high temperature and heavy rainfall with alternate wet and dry periods, which leads to leaching of soil, leaving only oxides of iron and aluminum. It lacks fertility due to a lower base-exchanging capacity and a lower content of nitrogen, phosphorus, and potassium.

What are the characteristics of laterite soil Name one region where it is found?

(iv)These soils are mainly found in Karnataka, Kerala, Tamil Nadu, Madhya Pradesh, and the hilly areas of Orissa and Assam. (v)After adopting appropriate soil conservation techniques particularly in the hilly areas of Karnataka, Kerala and Tamil Nadu, this soil is very useful for growing tea and coffee.

Where does the laterite soil developed list any two important characteristics of this soil?

(a) Two main characteristics of laterite soil are : It is red in colour with high content of iron oxides. 2. High content of acidity and inability to retain moisture. (b) Gujarat and Maharashtra are the regions of black soil.

How is laterite soil formed where is it found in India?

The laterite soil is a result of intense leaching owing to heavy tropical rains. They are usually found covering the flat uplands and are spread in western coastal region receiving very high rainfall. This poor soil is also found in some parts of Tamil Nadu, Orissa, Chhottanagpur plateau and Meghalaya.

What crops are grown in laterite soil?

Laterite soils are generally suitable for most of the dryland crops. It is mainly cultivated with coconut, arecanut, banana, tapioca, vegetables, yams, pepper, pineapple, fruit trees etc.

How is laterite soil formed give the main characteristics 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. The lacks fertility because of the lower base-exchanging capacity and a lower content of phosphorus, nitrogen, and potassium.

What are the characteristics of lateritic soil?

Laterites are rich in iron oxides, aluminum oxides and low silicates but may contain appreciable amounts of kaolinite and due to the presence of iron oxides; lateritic soils are red in colour (Amu et al, 2010). Lateritic soil in its natural state generally have low bearing capacity and low strength due to high content of clay.

Why are the geotechnical properties of lateritic soil important for an engineer?

The geotechnical properties of lateritic soil is important for an highway engineer to enable him to identify and classify the soil, measure its strength, evaluate its drainage properties and help in processing the soil as a highway material.

Is Lateritic soil suitable for sub-base and base materials?

The liquid limit, plastic limit and plastic index ranges from 12.0 to 40.1%, 10.0 to 22.0% and 2.8 to 20.4% respectively. This implies that lateritic soil present throughout the study area is suitable for use as sub-base and base materials since the geotechnical properties are fairly within the regulatory standards of Nigeria.

Is Lateritic soil suitable for road construction in Nigeria?

However, little is known of their geotechnical properties and suitability as base, sub-based and sub-grade materials for road construction. This study is aimed at utilizing in accordance with regulatory standards of Nigeria, the geotechnical techniques to investigate the properties of this lateritic soil.