Explain the chief characteristics of the Regur and Black soils of India?
Answers
Black soil
(i) These have been formed due to withering of lava.
(ii) The black soils are made of extremely fine materials, i.e., clayey materials.
(iii)These soils are rich in soil nutrients such as calcium carbonate, magnesium carbonate, potash and lime.
(iv)These soils are generally poor in phosphoric content.
(v)The soil is well known for its capacity to hold moisture.
Black soil is also called Regur soil. It is black in colour and ideal for growing cotton. This type of soil is typical of the Deccan trap (Basalt) region spread over North-West Deccan plateau and is made up of lava flows.
Four characteristics of this soil are as follow
(i) It is made up of fine clayey material with a high moisture retention capacity.
(ii) It is rich in soil nutrients like calcium carbonate, magnesium, potash and lime, but poor in phosphoric content.
(iii) It develops deep crack during hot weather, helping in proper aeration of the soil.
(iv) It is found in the plateau areas of Maharashtra, Gujarat, Madhya Pradesh and Chhattisgarh as well as in the Godavari and Krishna valleys.
Answer:1. Black soil is also called 'regur' soil and it is best suited for cotton cultivation. 2. ... Black soil has high water-retaining capacity, and is extremely firm when wet; it develops deep, wide cracks on drying.
Explanation: