Black soil: (a) Features: (l) This soil is black in colour. (ii) It is also known as regur soil. (iii) It is ideal for growing cotton and is known as block cotton soil also. (iv) lt is made of clayey material. (v) It can hold moisture. (vi) It is rich in soil nutrients such as calcium carbonate, magRead more
Black soil: (a) Features: (l) This soil is black in colour. (ii) It is also known as regur soil. (iii) It is ideal for growing cotton and is known as block cotton soil also. (iv) lt is made of clayey material. (v) It can hold moisture. (vi) It is rich in soil nutrients such as calcium carbonate, magnesium, potash and lime. (vii) lt is poor in phosphoric contents. (viii) lt develops deep cracks during hot weather which helps in the proper aeration of the soil. (ix) These soils are sticky when wet and difficult to work on unless tilled immediately after the first shower or during the pre-monsoon period.
(b) Places: It is found in Deccan trap Basalt) region spread over northwest Deccan plateau and is made up of lava flows. They cover the plateaus of Maharashtra, Saurashtra, Malwa, Madhya Pradesh and Chhattisgarh, and extend in the south east direction along the Godavari and the Krishna valleys.
(a) Alluvial soils are formed by the deposition of rivers. (b) The features of the alluvial soils are explained as below: (i) The alluvial soils consist of sand, silt and clay. (ii) These soils contain adequate proportion of potash, phosphoric acid and lime. (iii) These soils are ideal for the growtRead more
(a) Alluvial soils are formed by the deposition of rivers.
(b) The features of the alluvial soils are explained as below:
(i) The alluvial soils consist of sand, silt and clay.
(ii) These soils contain adequate proportion of potash, phosphoric acid and lime.
(iii) These soils are ideal for the growth of sugarcane, paddy, wheat and other cereal and pulse crops.
(iv) Soils in the drier areas are more alkaline and need proper treatment and irrigation.
(v) These soils are of two types – old alluvial soil known as bangar and new alluvial soil known as khaddar.
(c) Places: These soils are found in the entire northern plains, Rajasthan, Gujarat (a narrow corridor), eastern coastal plains particularly in the deltas of the Mahanadi, the Godavari, the Krishna and the Kaveri rivers.
(d) Bangar is old alluvial soil and has higher concentration of banker nodules than the Khadar (new alluvial soil). It has more fine particles and is more fertile than the bangar.
(a) Soil is the most important renewable natural resource. It is the medium of plant growth and supports different types of living organisms on the earth. (b) The soil is a living system. It takes millions of years to form soil up to a few centimetre in depth. Important factors responsible for the sRead more
(a) Soil is the most important renewable natural resource. It is the medium of plant growth and supports different types of living organisms on the earth.
(b) The soil is a living system. It takes millions of years to form soil up to a few centimetre in depth. Important factors responsible for the soil formation are as follows:
(l) Rocks: Parent rock or bed rock on which the soils are formed, disintegrate and decompose under the process of weathering and erosion.
(ii) Climate: It determines the rate of weathering and the type of vegetation.
(iii) Slope: It decides the accumulation of soils.
(iv) Various forces of nature such as change in temperature, actions of running water, wind and glaciers, activities of decomposers etc. contribute to the formation of soil.
(v) Chemical and organic changes to play their role in the formation of soil.
There are many ways to solve the problem of land degradation. These are as given below: (l) Afforestation. Plantation of trees should be encouraged. (ii) Proper management of grazing. Separate sites should be fixed for grazing. (iii) Planting of shelter belts of plants. (iv) Control on over grazing.Read more
There are many ways to solve the problem of land degradation. These are as given below:
(l) Afforestation. Plantation of trees should be encouraged.
(ii) Proper management of grazing. Separate sites should be fixed for grazing.
(iii) Planting of shelter belts of plants.
(iv) Control on over grazing. Rules for grazing should be framed.
(v) Stabilisation of sand dunes by growing thorny bushes to stop land degradation.
(vi) Proper management of waste lands, control of mining activities, proper discharge and disposal of industrial effluents and wastes after treatment in industrial and suburban areas.
Mention three characteristics of black soil.
Black soil: (a) Features: (l) This soil is black in colour. (ii) It is also known as regur soil. (iii) It is ideal for growing cotton and is known as block cotton soil also. (iv) lt is made of clayey material. (v) It can hold moisture. (vi) It is rich in soil nutrients such as calcium carbonate, magRead more
Black soil: (a) Features: (l) This soil is black in colour. (ii) It is also known as regur soil. (iii) It is ideal for growing cotton and is known as block cotton soil also. (iv) lt is made of clayey material. (v) It can hold moisture. (vi) It is rich in soil nutrients such as calcium carbonate, magnesium, potash and lime. (vii) lt is poor in phosphoric contents. (viii) lt develops deep cracks during hot weather which helps in the proper aeration of the soil. (ix) These soils are sticky when wet and difficult to work on unless tilled immediately after the first shower or during the pre-monsoon period.
See less(b) Places: It is found in Deccan trap Basalt) region spread over northwest Deccan plateau and is made up of lava flows. They cover the plateaus of Maharashtra, Saurashtra, Malwa, Madhya Pradesh and Chhattisgarh, and extend in the south east direction along the Godavari and the Krishna valleys.
How are alluvial soils formed? How is Bangar different from Khadar?
(a) Alluvial soils are formed by the deposition of rivers. (b) The features of the alluvial soils are explained as below: (i) The alluvial soils consist of sand, silt and clay. (ii) These soils contain adequate proportion of potash, phosphoric acid and lime. (iii) These soils are ideal for the growtRead more
(a) Alluvial soils are formed by the deposition of rivers.
See less(b) The features of the alluvial soils are explained as below:
(i) The alluvial soils consist of sand, silt and clay.
(ii) These soils contain adequate proportion of potash, phosphoric acid and lime.
(iii) These soils are ideal for the growth of sugarcane, paddy, wheat and other cereal and pulse crops.
(iv) Soils in the drier areas are more alkaline and need proper treatment and irrigation.
(v) These soils are of two types – old alluvial soil known as bangar and new alluvial soil known as khaddar.
(c) Places: These soils are found in the entire northern plains, Rajasthan, Gujarat (a narrow corridor), eastern coastal plains particularly in the deltas of the Mahanadi, the Godavari, the Krishna and the Kaveri rivers.
(d) Bangar is old alluvial soil and has higher concentration of banker nodules than the Khadar (new alluvial soil). It has more fine particles and is more fertile than the bangar.
Give the importance of soil. Explain factors responsible for soil formation.
(a) Soil is the most important renewable natural resource. It is the medium of plant growth and supports different types of living organisms on the earth. (b) The soil is a living system. It takes millions of years to form soil up to a few centimetre in depth. Important factors responsible for the sRead more
(a) Soil is the most important renewable natural resource. It is the medium of plant growth and supports different types of living organisms on the earth.
See less(b) The soil is a living system. It takes millions of years to form soil up to a few centimetre in depth. Important factors responsible for the soil formation are as follows:
(l) Rocks: Parent rock or bed rock on which the soils are formed, disintegrate and decompose under the process of weathering and erosion.
(ii) Climate: It determines the rate of weathering and the type of vegetation.
(iii) Slope: It decides the accumulation of soils.
(iv) Various forces of nature such as change in temperature, actions of running water, wind and glaciers, activities of decomposers etc. contribute to the formation of soil.
(v) Chemical and organic changes to play their role in the formation of soil.
What are the ways to solve the problem of land degradation?
There are many ways to solve the problem of land degradation. These are as given below: (l) Afforestation. Plantation of trees should be encouraged. (ii) Proper management of grazing. Separate sites should be fixed for grazing. (iii) Planting of shelter belts of plants. (iv) Control on over grazing.Read more
There are many ways to solve the problem of land degradation. These are as given below:
See less(l) Afforestation. Plantation of trees should be encouraged.
(ii) Proper management of grazing. Separate sites should be fixed for grazing.
(iii) Planting of shelter belts of plants.
(iv) Control on over grazing. Rules for grazing should be framed.
(v) Stabilisation of sand dunes by growing thorny bushes to stop land degradation.
(vi) Proper management of waste lands, control of mining activities, proper discharge and disposal of industrial effluents and wastes after treatment in industrial and suburban areas.